Who do I choose? 😭😭

So I broke up with my baby's dad and am now dating another guy. Well the baby's dad has now kinda got his stuff together and I love him so much. I am insure if I should stick with my boyfriend. My boyfriend is great with my son and he talks about a future together and I know he means it. My ex though.... It's so sketchy. I am so sad to say that I have even cheated on my boyfriend with my ex once. I know I am gonna get a lot of shit for this and I know what I did was wrong.