Hi,
I really feel for what you are presently going through. I've been there myself recently. I actually told my wife this weekend, although she forced the issue somewhat by pretty much guessing what was wrong. I've been through a particularly biting patch of dysphoria that refuses to let go and let me function properly, so I have been withdrawn and riddled with anxiety and depression.
I could see my wife getting more and more frustrated with me, because she could see I was hurting, but I wouldn't/ couldn't tell her why. I think that if we hadn't talked, our marriage would have been in jeopardy quite soon.
As it is, I have had a really positive result. In a funny sort of way, she understands me better now, and she can see all those parts of me she didn't know were there. Yes, I cried and she cried, but we were more honest with each other than we possibly have ever been, and she understood that what I was telling her was true and that if I didn't do something soon, I might not have been here much longer...
So, here's how I approached the conversation, for what it's worth, bearing in mind that everyone is different:
1. Be honest. Tell her everything, even if it makes you ashamed. My wife knows that I want to transition fully one day, and that scares her a bit, but she has seen how much it has cost me to pretend to be male for so long into my forties. She could see how brave I have had to be.
2. Writing a letter helped me. When I started to cry, I couldn't put my thoughts and feelings into words. My letter did it for me.
3. Let her know how long your feelings have been going on. I told her about an operation I was undergoing when I was four, and how I asked the doctor if I would wake up as a girl. That helped my wife see that this is something that I have been carrying for a long time now.
4. Ask for her help. Use language that indicates that you want to include her in your transition and that you will not be changing immediately. My wife and I will have a conversation this week to negotiate what she is comfortable with and what will be too much this early on. So be a team if you can. Let her in.
5. Have research available to back up what you say. That cuts through all the sensationalist rubbish that the press spews out. Some of the links on this site are fabulous.
6. Keep talking. I spent Sunday making sure she was okay. She took it remarkably well, considering I was expecting to be booted out the house.
7. Know your wife and how she will respond. I knew my wife was very tolerant from conversations we have had about LGBTQ issues. That's not true for everyone, I realise, but seeding your eventual conversation with hints and references might help.
8. If hiding the truth is causing both you and your partner harm, then you owe it to both of you to tell the truth. The risks might outweigh the gains, but hopefully you might strike the jackpot, as I seem to have done.
I've been on an emotional rollercoaster since Sunday, from 'Oh my God, what have I done?!' to a real sense of relief and pride that I'd made another important step on my epic journey. Today has been the first day that I haven't dreaded for quite a while.
But whatever approach you take, good luck. Seriously. I really hope it works out for you.
Mia