He cheated on me with Peru ladies.

I thought long distance relationship will make our love stronger, but it didn’t. It only broke me slowly into pieces. When my boyfriend was acting cold, I thought it was just for a show. He used to do that when I’m busy at work and seldom pays attention to him. I was wrong. When he stood three days without communicating with me, I know in my heart that there was something wrong. I ignored the idea though. I just thought he was mad at me. He really was but he had another activity going on. One of our common friends told me he saw my boyfriend with different Peru ladies in the club, malls or restaurants. I broke up with him then. I did not need to hear any explanation coming from him since it’s as clear as crystal that he wanted the same thing too. I always doubted my worth since then. Until now, I can’t accept the fact that he was able to throw away our almost 4 years ride. I always found myself crying every night. I needed an explanation but I don’t want to look desperate in front of him. Is there anything else I can do to ease the pain?