Kinda same thing happened to me.

Had a mental breakdown, ending in a suicide attempt, in the middle of which my gf broke up with me. Like, when I messaged her because I was doing very poorly she broke up with me, blocked me on most stuff.

She came back a month ago and we talked a bit. Told her why I began to spiral so badly, that I was uhhh, you know, when I was very very young and she just stopped responding and ignored my messages.

Gotta say, it hurt. Christ, it's still hurting. I'm crying daily now, I'm embarrassed to say. I dunno if it's the two decades of repression where I was numb to most feelings but here I am.

The kicker is, I was there for her when she talked about her past. Guess I should've kept my mouth shut and just buried it back down.