<human>: Hey, everyone. So I need opinions about this.
I've been obsessive compulsive for as long as I can remember (clinically diagnosed). My roommate, who is also my best friend, thinks that, just because we're so close, that it's okay to use/eat things that are mine without asking. Now, I don't have a problem with someone asking me before they use things, but she feels like it's okay to make a meal with food I bought and then to just turn around and ask me to pay for food she makes for us. It makes me feel ill and nauseous to kjust see her using things that are mine because I always like knowing where my possessions are at all times. I don't know why I feel like this, but I just rage hard about the whole situation and I don't want to lose a friend over something I'm over-reacting about. Am I in the wrong? If so, how do I handle it?

Summarize the given text in a few sentences.
<bot>: my friend/roommate uses/eats my shit and it makes me feel weird. Am I right to feel this way?