What do I do when my boyfriend's friends are immature and just don't like me?

My boyfriend and I are great, but his friends are very very immature, and since I am not like them, they just don't like me. They think im too uptight, they party and drink everrry single night, and they tell the most weirdest jokes and say weird things and think it is just so funny. I really did try to get along with them, I was nice to them, and I partied and got along with them.. but they really just act like 10 year olds to tell you the truth. Im not a girl that doesn't want my boyfriend to not hangout with his friends, at all, I even liked to go hang out with them at first before I realized how they were, (they also talk crap about anyone and everyone behind theyre back) They all drink everry single night, and they like to act stupid.. on purpose to be funny, like one girl has just no common sense and i can tell shes acting dingy so the guys will laugh at her and get attention. They are all 20-25. None have been in college, and a few don't have jobs. The other night, we came over to a party just for an hour and I wasn't feeling well So I asked my boyfriend if we could leave.. he said we just got here baby then i said well im just not feeling well can we please just leave.. then a couple people were like dang if i wanted to hear her whine i'd go to my mamas house. That same night I didn't want to hear my family arguing, so since we both live at home and our parents won't let us stay at each others houses over night, we just got a hotel. His friends knew we got a hotel, and at 2 30 in the morning, they found out what room we got, and banged and yelled at the door and scared me to death, they called our room, banged several times, called, and honked the horn. I was scared thinking somethign like someoen was trying to kill us lol, but then my boyfriend went outside and it was them laughing. About 8 of them packed in a car. My boyfriend Doesn't see their immatureness.. and I try to get along with them but he doesn't like that I can't just try to like them, I have tried but they don't like me and talk about me when Im not there. I don't know what to do.. its starting to mess me and my boyfriend up that I don't like to hang out around them. Help!!