Ok I have been with my fiancé for 2 years. He cheated on his daughters mother with me when she was still pregnant and ended up breaking up with her to be with me. I always wondered if he was cheating on me. Well he got a puppy who got sick from the other dogs that were in our home and in order to save the puppy he had to live somewhere else well my fiancé moved in with his daughter and her mother and our puppy and for the 2 months that he was there he would come spend the night with me and we'd talk everyday well about a month ago I found out that he had his ex give him oral while he was staying there and I feel like I can't trust him now and I don't want him over there but he has to see his daughter I'm just scared he's still cheating even though he doesn't have the time to do it... I'm just confused and need advice