Who likes when you come home to a party you know you're not invited to?

So a lot of things have gone on since I made the move out of my parents house to Dekalb, IL. I live with my boyfriend Dave and we couldn't be happier.....except the room mates have been driving us insane since I moved in. They are probably great people but they never took the chance to get to know me. Which probably resulted to them not hanging out with my boyfriend and I anymore. We got into an argument when I moved in that it wasn't announced that I was moving in but it really was. My boyfriend told them that if he met someone, that she might move down with him and asked if it was ok already. So he meets me and I follow him down here, they get mad. So we haven't really been talking to them much, and the longer we live with them it seems to get worse. Thank goodness we aren't renewing the lease this year. We did last year because we didn't want to move and save money. Well I guess saving money doesn't really make you happy sometimes. The apartment seems to be divided, like we own only our bedroom and bathroom. Other than that they have taken over the rest of the apartment. I barely use the kitchen besides a small spot in the refrigerator for my lunch stuff and sometimes the freezer. Lately the freezer has been so packed with junk that I can't put my lunch stuff in there anymore. We have a minfridge in our room, but is it too much to ask for a small spot just to put my frozen product in the freezer? I feel wierd using the living room. We barely go home now because we would just be confined to our bedroom if they are in the living room. Another issue is laundry....I have noticed that they like to do all thier laundry on sundays, if thier not home then it's mondays. So I try to schedule my laundry time around that, like doing small loads during the week. Sometimes I forget something in the dryer and if it's still in there sunday or monday, it ends up on the couch. Which is fine with me sometimes....one time we came home to find wet and dry laundry on the couch because they decided to take it out so they could do laundry.....that certainly hit a note with us.....We came home a couple time recently too where they had a bunch of friends over, like last night. They don't even tell us they are having people over and they don't even invite us. Dave says they are disrespecting us and I totally agree....why would people do that? They even vaccuum at 11:30 at night!!! So we've been trying to think of a way to get revenge on them before we move out. I'm not totally great at doing something like that but maybe do something so they get the point. Like have a party, start playing my guitar in the morning and wake them up.....need some ideas? When we aren't home, we are always at our friends house in Dekalb. They are great people and I don't think we will end up like our current room mates. We hopefilly will move in sometime this summer and trust me the sooner the better. I already feel like I live here at our friends how much time we've spent here!