am i being selfish

when my boyfriend and I had nowhere to stay there was a few weeks when we slept over the house of a friend. A few days after we moved this same friend and his family happened to get evicted and are now staying with us. These people helped us out for a while and put a roof over our heads when we needed and although I am greatful, I honestly don't want them there...but there are differences. 1. When we stayed with them there were only two of us. there are 6 of them. 2. They had a spare room that was never being used. We don't. 3. When we stayed there we didn't eat their food, drink their drinks, or even use their showers. Now that they're on our home we went through 60 sodas in less than a day and have no clean towels. What makes me most uncomfortable is the fact that these people are in my apartment even when Im not there. Am I selfish for wanting them gone after they let me stay with them? It stresses me out just to come home to a house full of people, i don't feel comfortable in my own home. on top of that there cousin who lives in town keeps coming over and letting himself in. He even broke into my bedroom when the door was locked and i was inside topless. He's rude to me and now I think he stole my taser when it was charging in my bedroom. next time I catch him in my apartment im calling the cops...