Love triangle .. kinda lol

Ok so I’m gonna try to make this short.. I was with my ex for 3yrs then we ended up breaking up November/December 2017.. I was in a new relationship by the end of January 2018 and i got pregnant, it all happened so quick now its 2020 hell even in 2019 I still find myself thinking about my ex I’m still in love with him 🥺 I feel so bad for not being in love with my baby’s father.. my ex cheated on me but he showed he cares, we had great conversations, I feel like he understands me.. while my baby’s father we don’t really have great conversation but we have good times together, he cheated as well even choked me once ( when he gets mad HES GETS MAD).. I guess I just want some advice please (don’t be mean)