Case Study: Do I Stay or Do I Go?

I have had many interesting boyfriends in my life. I waited for a missionary and it ended up not working out and it caused me a lot of grief. Then I started dating a boy up at BYU-I while attending school. We had dated for almost a year and I have felt that he was perfect. I couldn’t figure out why he hadn’t proposed. When I finally got brave enough to ask him why, he would always avoid the question. Then one day he said that we needed to go to the temple and pray about getting married. So we went separately and my answer was yes. He called me and told me his answer was no, not yet. I was puzzled by his answer. Then one day while at work he called me and asked me to check his email for a file he needed. When I did I found pornographic emails in one of his folders. Sure those emails come through the junk folder but he had a separate folder which he saved them in. I instantly called him out on it and he confessed to having a pornography problem before his mission and then had gotten back into it after he came home. I knew that this was a HUGE deal. Families are destroyed over something like this. I didn’t know if I should run from the relationship or try to help him. Because he had gotten back into it after his mission that showed that he had the potential to go back into it again if he ever quit. Was he a lost cause, could I risk my future family for this guy?