I need boy advice?Please help???10 POINTS BEST ANSWER????

Okay well i hooked up with my dads best friends son a couple months ago. NO just made out and . and well we hung out a a couple times after our hook up but then one day we stopped talking. once i tried to talk to him but he blew me off so i was like "F that im not gonna kiss his a s s " okay so i just try to avoid him. So yesterday he randomly showed up to my house and well thankfully i was locked in my room cause i was doing hw and well i guess he started talking to my older brother (which i find odd because they've never talked before) so then he left but then he came back like 5 minutes later and he started hanging out with my brother. I think he thought i wasnt home because like i previously mentioned i was locked in my room. Okay soo what the hell oh btw i believe he was high or drunk because my brothers friend who was also with them told me. So why do you think hes trying to befriend my brother and showing up at my house? I mean i find him attractive and stuff but yeah after he blew me off i want nothing to do with him. I just dont want him showing up at my house just to try to talk to my brother because i will feel EXTREMELY awkward seeing him.