Well I have been with my boyfriend for 3 year, and we had bad times, and good times. But when I have dreams about him my dreams are mostly he is hurting me, because in real life, he has hurt me. So what does it mean? I don't like how it feels. I asked him if he is doing something, he tell me no, he is not, and I have a hard time to trust him. Is this is going to affect my relationship with him?

Dreams are your subconscious mind acting,, it is just something you feel deeeeeeeeeeeeeeeeeeeep inside and these feelings come in the form of a dream. Do not take dreams seriously...

He has hurt you before, and they affect your dreams. So yes between the dreams and real life you don't trust him. The question is how has he hurt you before, and how was it resolved, or was it?

Sometimes old unresolved feelings affect us badly.