Me and my boyfriend have been dating for three months! But have known each other for about 7years now, Everything has been going good so far, the thing is that he has cheating in the past with his ex-girlfriend! He said he only cheated because she did! But I'm scared he is going to cheat on me! I really don't know what to do! I really care about him and don't want to lose him! But I fear that he is going to cheat on me!

That fear will drive you crazy, and push him away if it affects how you treat him. Stop worrying about something that hasn't happened yet, and get back to having fun getting to know each other better, in this VERY new relationship.