I had something similar happen to me. My wife left me for another guy while I was in Iraq. She let her new group of friend persuade her she eas too young to be married. I treated her with nothing but respect, I was honest, I never cheated, and I did everything for her. I still trying to get over it myself. It's been about two month since I found out. You just got to remain strong. There are plenty of women out there that would appreciate a man that'll treat them right. It's difficult, I know, but you got to remember what she did to you even if you got her back what says she won't do it again. It's time to move on find someone who'll appreciates you. Good Luck and stay strong