My boyfriend had locked the center console of his truck and I went in there looking for his insurance papers for a claim and found an engagement ring. When he asked me if I had been in his truck, I lied and said no. He found out and he's beyond upset. The issue is further complicated by him cheating on me recently and we are trying to work through that. I forgave him and I'm not sure if he's going to forgive me. I'm so hurt that he can't forgive me. I haven't lied to him before, it's not an excuse just I don't have a history of being deceiptful. How can I keep him?