Navy and relationships

I am in the navy, I had a bf for 5 years we had our ups and downs but he always came through for me. Now I broke up with him treated him like shit called him various types of names that he isn't like stalker, creeper and he never come off that way and I know he only trying to contact me to see what is going on the truth is I cheated on him and started another relationship with another guy that does not know a thing about me now what I am asking is should I talk to him and see what is going on and take him back or should I continue to hurt him the way I am knowingly that he is really in love with me. Thank You