Do we have a chance o not

Hi guys ,l was involved with my Baby Dady for 2 years now . We got a 2 year old baby together but my question is. We moved in together wen l was 8 months pregnant we had then we he moved in with me l found out he had another girl n they broke up we she found out about me . One days he came to our house telling me he's not feeling well but l saw a message from his friend "sorry u going through a heart break" since that day our relationship suffered .we had a good a bad time but mostly bad coz at the back of my mind l though it was a rebound. I started going thru his fone n became a nagging girlfriend , he was talking to a lot of girls 😒. How recently l discovered his talking to that girl that broke his heart . He was telling me they were friends just friends but l never believed it .Then one day l saw a message from her that said " you dnt love me nomore " l was pissed off n l put him out the house . He was very angry so was l so a week o so .Then after that week he's been coming home to see us n sleeping over ,of course we have sex . We dnt talk about wats going on but please us your judgement n help me decide if l shld keep doing this o shld l Juss move on with my life