He lied to my Face, now I found out the truth what do I do?

So theres this guy Joey and we hooked up 2 weekends in a row. The 2nd time I was highly buzzed. The 3rd weekend we didn't talk at all and he ignored me that whole week. My friend told me she saw a Hickey on his neck and that he said it was from me. I told her I KNOW that wasn't me. I confronted him and he was like what hickey I don't have one, then his friend was like its from you! Then he was like yeah its from you silly you just don't remember. Then I said No that it wasn't and he was like your making me feel bad that you think it was from someone else. A hickey like that would of not stayed like that after 2 weeks! So I was like ok fine, maybe it was me but I seriously don't recall. So we hooked up two more weekends in a row. Today, my friend told me that she heard some girl gave him that and it wasn't from me. I told her that see I told you and etc. Now I ume he found out I already know, it just bothers me how he lied! He could of told me the truth, now I don't know what to do!