My Long story short we are both 19 we've been married since feb2022, she now wants a divorce. I love this lady with everything in me, she told me she's been wanting to leave for 3 months, we have a 3-month-old baby girl. I love them both so much and feel like I'm losing them. I found her on Bumble and Tinder texting a lot of people, and forgive her. I've also made my fair share of mistakes like beating my meat with porn, some times I'm irritable towards her like little arguments and whatnot. But she said my mistakes aren’t forgivable, we're staying separately right now but I wanna fix this it sucks so much. She has said/done a lot of painful things but I still want to be with her. I don't know what to do. I want us to work on it but I don't think she wants to, but like I told her I don't care if it's 10 years down the road I know she's who I want to be with.

What can I do to save my relationship with my wife? What can we do about our kid to not fuck her up?