Am so confused!me and my bf that i have been wit for five years just broke up,it really hurts me coz me and?

him were crazy in love,everybody thought we would never break up.but he started cheating with the that everybody not just me thinks his gona regret.he tells his friend he loves me and he might me doing stupid things but his alwaz gona *** back to me coz am his soulmate. after breaking up with a started seening this guy i mean his hot,rich and all but he waz just a rebound to me coz i still love my ex.my ex texted me and called me all sorts and told me his gona marry the ***** his been with 4 only a few months after finding out that am still with my new guy..he says he still love me and still wants to give intertanl love..his with the other girl but he says his mind is not all on her.do you think there is still love behind his dissing?shud i diss back or not?