About a week ago my (24M) girlfriend (22MTF) of almost four months came to bed looking really somber, and I asked her if she was fine, to which she said yes. A few minutes later she started crying and apologizing and being clearly not fine, so I asked again and she opened up.
Apparently, she'd accidentally gone down a mental spiral about her being trans again, and part of it this time is a previous conversation of ours that day where I reassured her that I'm completely fine with "the trans thing" (her words) and that it doesn't bother me at all that she's born male, *but* that the only thing is that I don't want to know her deadname, because I don't know how that would make me feel, I don't need to know it because she is [Current Name] to me, and because I know I would likely not be able to stop thinking about it, as I have OCD tendencies.
While getting ready for bed, she had been thinking about that a lot, and it reminded her of how 'different' from other, 'normal' girls she is, that she will never be normal, and that she feels bad for being trans, because it makes our relationship inherently so much more complicated, than it would be if I were dating someone who was born a woman.
It was to the point where she apologized for being trans, and that she wishes she wasn't this way, and could've just been 'normal'.
I tried my best to reassure her that I still liked her, and that even if I found out her deadname it wouldn't change anything, because that's not who she is to me, but she insisted it's something that can't be 'forgotten'.
I feel terrible about it, like it's my fault, and I really wish I hadn't said it all. She insisted it was fine, and that I shouldn't feel bad for it, and that it's instead her who's a little crybaby who needs to toughen up, because she wants that kind of open and honest communication between us; especially about her being trans.
I love this girl, she is the first person I've ever met that I've actually wanted to be in a relationship with, but I think she gets so consumed by her self loathing (for being trans, and just in general) and insecurity that she has a hard time accepting it, and it breaks my heart. Especially when I feel like it's my fault for making her feel like if I were to find out her deadname, it would change anything between us. I don't know how I'd feel if I did find out, but I know it wouldn't change anything about what I think of her, and that I'll still love her, but she didn't seem convinced. Any advice?