<human>: I am a junior in college and living on my own for the first time. I rent a house with 2 other girls. One girl, M, is a friend and someone I know very well. The other girl, T, is an acquaintance who I barely know.

Now, things have been a little rough, as it is the beginning of the school year and all of us are "on our own" and out of the dorms for the first time. The biggest issue we've had,though, is dealing with the constant presence of T's boyfriend.

T and her boyfriend stayed in our house over the Summer, and seem to be used to being the only ones in the house. However, now that me and M have moved in they still act as if it is just the two of them.

Despite T's boyfriend having an apartment of his own, he his here at least 3 times a day every day, parks his car in our tiny driveway, shaves and showers here, and even has his puppy stay here. He also accumulates dishes (and doesn't wash them), and has a bunch of his belongings in our basement.

M and I don't have the slightest clue of how to handle this situation. Both of us are the type of people who dislike confrontation, but both of us are inconvenienced and annoyed at T's/T's boyfriend's behavior.

How can we talk about the issues we have in a civil way? We've requested we have a 'roommate meeting' 3 times now, and every time T comes up with a different excuse not to. She's barely here, and when she is her boyfriend is here too. While these behaviors are annoying, they also violate our lease. I know my last ditch effort would be to call the landlord and have him handle it, but I'd like to try communicating first.

Can you condense the text into three sentences or less?
<bot>: College roommate's boyfriend is constantly creating messes,stores things in our house, and is here every day. Don't know how to talk about negative issues in a civil way.