Am I wrong to be angry/sad at my BFs friend[F] for taking the front seat and always wearing his clothes

This girl is a mutual friend of ours and I get on great with her but I feel like she’s oblivious of things she does. She constantly wants to go for spins with us, when we go out she always runs for the front seat, and she always picks up hoodies and jackets in the car that belong to my bf and wears them. Ik that she’s not gonna try something and that nothing would ever happen between them. But am I wrong for thinking she is overstepping boundaries. She has her own bf but he can’t drive yet so she hardly ever sees him. Am I being selfish for wanting my bf to just be my bf and not like a fill in for her.