Should I feel I guilty?

My boyfriend of over a year has just finally unloaded on me all these years of trauma he’s had growing up due to having a drunken addict father and a lot of mental illness in his family . He just finally let out today how it’s made him who he is today and how it has affected him. He said it’s made him hard to love, made him feel unworthy, doesn’t know if he ever wants to get married, and doesn’t want to have kids. I feel so bad for him and have a different outlook on how these things have affected his life. I used to just think he was a jerk I never realized how he’s been hurting Inside off and on through his life. About four months ago he started being verbally and a little physically abusive to me and I have forgiven him for it each time. My thing is after hearing all this is it bad I feel guilty? Like if I would’ve known this about him like the depression and trauma he’s dealt with I would’ve been better to him and maybe he would’ve never treated me the way he has? I just feel bad like I could’ve prevented these things now, it almost makes me forgive him completely . Is this normal to feel this way? I feel like our relationship can really be saved knowing now what I know about his depression and I can’t be better now and that can help avoid all these arguments where they result into him getting frustrated and angry