Ok seriously am I wrong? Lol

Maybe I am i'm seeking honest opinions. My bf of 1 year has a 7 year old daughter and still lives with his parents. Since they're having guests this weekend he said he wants me to sleep over but I have to share a bed with him and his daughter since her room will be being used. I said I'll just come over and leave late because there's no way I can fall asleep with all 3 of us in a bed. He is so angry and saying i'm being dumb and selfish just because I don't wanna sleep over this one weekend. Am I really wrong here or what? Maybe I am idk.