Am I wrong?

So I have a bf who lives with me and my mom. He helps out and all but....... I don’t really like sharing my bed for an amount of reasons but, for one it’s too hot for 2 I don’t like being touched when I’m trying to sleep. And I have bipolar disorder so it makes it

Worse. So he takes up most of the bed and I absolutely hate it so I go to my mothers room when she’s at work to give me space. But he then wakes up and comes in her room.... and does the same exact shit and I’m pissed at this point.

Am I wrong!? What should I do?