A lot of what you said sounds pretty similar to me too.
I've crossdressed since I was a young kid. I tried makeup a few times. It sounds like I was more tomboyish than you were; I liked sports, hockey, football (U.S version), and wrestling, didn't mind getting down and dirty and a little rough with my friends up to a certain age as I was generally bigger and taller than them. Once we all got to the point where we could hurt each other that changed. I always wanted breasts, tried so many different objects to try to get em to look nice and real. Never wanted to be big and strong like my friends.
Hated puberty changes, especially facial hair, I went a year w/o shaving it once it started cuz heard it would grow back quicker and thicker and all that once you did and I definitely didn't want that.
Later teenage years I became pretty much a loner, had some friends, mostly acquaintances tho, so I was alone most of the time. Parents gave me more privacy, more privacy led to more time crossdressing. One day I accidentally masturbated, while crossdressed, they went hand in hand after that and became a much more frequent thing.
I never really tried to date anyone. I wanted to, there were girls I was attracted to but I just didn't.
Mid 20s I met someone online, playing a video game of all things. I wasn't physically attracted to her at first but she was so interesting to me. We would talk bout stuff and play for hours. Over time I totally fell for her. She became my world, everything revolved around her. I would do any and everything for her. When she moved back home (we weren't too far away when first met her online, same time zone at least), basically opposite side of the world of me, I changed my schedule and my life so that I could be on hers, be up and online and around when she was.
I knew she didn't feel the same way bout me that I did about her. I know she liked me and did care for me and enjoyed spending time with me but she didn't love me, not like how I loved her. It didn't stop me tho, I didn't stop trying to make her fall for me too.
One day, while thinking of her, a thought popped into my head. I imagined myself as her. It kept on popping up too. I asked myself, would I rather be with her (romantically) if I could, or would I rather be her...the answer to that was always be her.
My other example of a relationship that I can share happened a few years ago. I had already begun my transition unknowingly. I was already in the process of growing out my hair and had been taking herbs to grow some breasts and all that other good stuff. I didn't know anything about trans or being trans; that wouldn't come for another few months after.
This one was a coworker of mine. I always thought she was beautiful but she was really quiet and kept to herself at work so I didn't really know her or talk to her much. I later started helping her with a project and as a result, was spending time with her, got to know her a bit. I thought about asking her out for a bit; finally got the courage one did and I did. She said yes.
I was nervous of course, having never been with anyone like that before (in person at least). By now I had some breasts, not a lot, but I definitely had some. I was nervous she would find out about my breasts. (Obviously if we dated long enough she would have but probably could've just passed em off as moobs at that point). I told myself I better stop, man up I guess in a way, so I stopped taking the herbs I was taking (didn't chop off my hair, thankfully) basically for her, so I could be with her.
We only lasted a few weeks, sadly. I tried my hardest to get her back, texting her, trying to get her to talk, take me back. She didn't so I restarted taking the herbs and heading towards transition.
Anyways, the point I am trying to make with these is this: when I was in a relationship with these girls, I felt liked, wanted, happy. If things were going good, if they were happy, I was too. Looking back on it now, I think I know the reason as to why (well, besides the feeling like I was liked and wanted for once). When I was with them, I made it all about them, they were what mattered, making them feel loved and happy was all that mattered. They occupied my thoughts completely. It seems to me that this is kinda similar to another coping strategy that I have heard about here a few times; burying yourself in work, keeping yourself busy so that you don't have time to think about yourself. I feel like that is what I was doing just in a different way. I didn't matter, my problems didn't matter.
I'm not saying that this is what you are doing, only you can figure that out, I'm only trying to say that your situation in some ways sounds familiar to me. While I wasn't married to em, I did truly love em, still kinda do; it's just kinda different now. I've read a lot of what you've written here and I hope things improve for you. I hope that this helps you.