Baby daddy.

Sorry long story but need to vent about it.

I met my baby daddy through a dating app 3 years ago. Everything was so perfect I knew he was a shy person and knowing me Im totally the opposite never met his family till I was 4 months pregnant. He would always keep. Things to him self long story short my baby girl is now 5 months we broke up when she was 2 months old. He keeps saying it was due to my attitude that didn’t let things work out. I love this man with all my heart and it hurts me that I have tried so hard to make things up he still says I need to change, I have a feeling that he’s talking to someone else and I get all buthurt and go by how I feel, I seriously have done everything to the point of begging him to come back it sucks to be in this situation because that was the last things I wanted for the baby to go through this what can I do should? Sometimes I just want to end things but it’s so bad to let him go. Please help me.