should I or shouldnt?

ok .. I was datin this guy for almost a year and well I was in love with him but I don’t know what happen that we just broke up . (he didnt have time for me and he thought he was hurting me so decided to break it off ) so then we break up I dont hear ANYTHING from him for 2 MONTHS … then one random day I get a phone call and its him … he wanted to know how I was doing and everything .. so we talked like occasionally for the next 4 MONTHS .. and it was good .. I was happy again.Until I got the atomic bomb that he was dating this other girl … So that really bothered me . at first I didnt care but it eventually did. So yeah I wouldnt talk to him much . Then one night he calls me up and he tries to have phone sex with me. I tell him no cause he has a girlfriend, and I tell him why doesnt he call his girlfriend if he wants it .. and he’s like she isnt the one that got me turned on .. and I was still NO .. and his like thats the way its going to be .. im like no just this is wrong .. you have a girlfriend … After that he didnt call me for 20 days .. but we would still text. then like 5 days ago we got in an arguement and terminated our connection, everything. no more calling, talking, texting… yet right now I regret that I did that cause I still have feelings for him ..

should I call him and try to work things out ?