Hi! Welcome, and thank you for being so supportive. It's great to see a spouse reaching out & trying to understand what's going on.
I'd like to discuss some of the points of your post, and then look at your questions.
Quote from: Twoman44 on March 08, 2017, 11:35:31 PM
I as a straight woman attracted to men, am devastated but trying to be as accepting as I can.
Should your husband decide to transition (it's not a choice: the need to transition is like having a gun held to your head), then you will find that you will be married to a woman, probably with a new female name, who is perceived by everyone else as being a woman. Your friends, family, colleagues and everyone you meet as a couple will see you as being in a same-sex relationship. Is this a reality that you can cope with? I sincerely hope so.
Quote from: Twoman44 on March 08, 2017, 11:35:31 PM
I have bought him some clothes, taken him to get a pedicure, and have helped him put makeup on to help him feel good about himself and that he is safe with me.
That's very kind of you. However, it is customary when a transgender person comes out to you to refer to them by the correct pronouns. It's possible that your husband hasn't asked for new pronouns yet, but if she is a woman then you will eventually have to get used to writing your sentences as follows:
Quote from: Twoman44 on March 08, 2017, 11:35:31 PM
I have bought her some clothes, taken her to get a pedicure, and have helped her put makeup on to help her feel good about herself and that she is safe with me.
I know it takes a long time and it can be difficult to get your head around it, but how does it make you feel to see your husband described in those terms? Accepting that your husband is actually a woman - and therefore your wife - is a hurdle you'll have to overcome if you truly wish to be supportive. Of course, she'll need to fully accept it too.
Quote from: Twoman44 on March 08, 2017, 11:35:31 PM
He wanted to keep everything private and in our home.
That's probably because there's a huge societal stigma surrounding transgender people. It's incredibly difficult to be treated like a freakshow, but sadly that's something that a lot of us have had to put up with. Going out in public presenting as your true gender can be utterly
terrifying. There's a chance that people might stare or laugh (scratch that: it
will happen) or even worse: they may attack her. Perhaps you could support her in that by offering to accompany her when she's ready to do so? Particularly in places like public toilets etc.
Quote from: Twoman44 on March 08, 2017, 11:35:31 PM
He says that he wants to go on HRT but won't because of the consequenses.
Which consequences? Again, this goes back to that stigma: the worry that you could lose your job, your marriage, your kids, your home... everything you hold dear if you decide to transition. Many of us have lost exactly that. Well, at least I still have my job so that's something. This is one of the reasons why trans people are so admirably strong: we have to be in order to survive the trauma that other people tend to put us through.
Quote from: Twoman44 on March 08, 2017, 11:35:31 PM
He says if he lets his mind wander then he can talk himself into going on HRT and even becoming a woman. Now he says he doesn't want to talk about it anymore and wants to put it back in the closet where it was and before I knew. How can that be possible???
Nobody - but
nobody - wants to be trans. Transition is an incredibly difficult thing to go through, and you lose whatever privilege you may have had in society in the process. People can be incredibly cruel to us and for absolutely no good reason. So pretty much all of us try to believe that we can suppress this; that we can put it back in the closet and carry on as before, because that seems easier than going through the trauma of transitioning. We
can suppress it, but only temporarily. Gender Dysphoria is a genuine medical condition that cannot possibly go away on its own without treatment. In fact, it builds & builds over time until it becomes so unbearable that we're left with 2 choices: transition or die. It's so serious that more than 40% of us try the second option at least once. So no, even if it gets shoved back in the closet this time, it'll come back again stronger than ever next time.
Now onto your questions:
Quote from: Twoman44 on March 08, 2017, 11:35:31 PM
Can he go through life knowing he desires to be a woman but do nothing about it?
Yes, she can - but it'd be hell on Earth, and she'll be in pain every day.
Quote from: Twoman44 on March 08, 2017, 11:35:31 PM
Can he have feelings of both a man and a woman?
Of course! We are not a binary species; it's not like male and female are the only two options. Everyone has a bit of masculinity in them and a bit of femininity in them: most of us have more of one than the other, but some people are closer to the centre.
Quote from: Twoman44 on March 08, 2017, 11:35:31 PM
Can he go on a low dose of HRT to get small breasts and some fat redistribution and softer skin to get just subtle changes to help his mild dysphoria?
Yes, she can. In fact, transition isn't necessarily about going the whole hog and having "the surgery" (as so many people rudely refer to it). Rather, transition is about doing as much or as little as is necessary to be comfortable in your own skin. Some people are happy with just occasionally dressing in opposite-sex clothing. Some people want HRT. Some want certain physical changes but not others. Some need to go all the way. It's a very personal thing.
Quote from: Twoman44 on March 08, 2017, 11:35:31 PM
If he stopped HRT, could he regain function of his penis to where it was before HRT?
Not my area sadly; Dena's answered this one.
Quote from: Twoman44 on March 08, 2017, 11:35:31 PM
Why is he all of a sudden pulling back completely and trying to ignore everything?
Because she's scared out of her wits that she's going to lose everything that's precious to her, including you. If you're telling us that you're only attracted to men, I bet she knows this too... and she's frightened that you won't want to stay.
Quote from: Twoman44 on March 08, 2017, 11:35:31 PM
How do I accept and learn to incorporate this into our marriage if he won't accept it himself?
By supporting your spouse in seeking out a Gender Therapist, and attending as many sessions as you can with your spouse.
Quote from: Twoman44 on March 08, 2017, 11:35:31 PM
He says that he had it under control before I found out by just wearing a bra and fantasizeing about being a woman while masturbating. After he was done, he would take it off immediately and be fine for awhile but still had thoughts going throughout his head often.
Like I said, it's about doing whatever you need to do to feel comfortable. But Gender Dysphoria gets worse (not better) with time, building up until it gets to the point where we have no choice but to transition. Perhaps that's what's happening here. Many of us have a history of trying to seek temporary relief which works for a while, but eventually we reach the point of no return where it simply isn't enough any more.
Quote from: Twoman44 on March 08, 2017, 11:35:31 PM
Any help is appreciated. I'm overwhelmed and feel like I'm on a roller coaster of emotions between grief and acceptance.
That's exactly it: it's wonderful that you're trying your best to come to terms with a difficult situation, and it's understandable that you're experiencing grief. You're grieving for your mental image of the man you married. Well, the genuine human being you married has been suffering from a traumatic medical condition for many years now, and it's possible that they'll be happier moving through the world in a female form. They'll still be the same person you fell in love with; just happier and in different packaging. I'd urge you to both seek counselling with a Gender Therapist to help you work through this together.
Good luck!