Guys: Does he like me? Or my friend? ?

Okay. I met him 5 months ago. I talk to him twice on every weekday on the bus. When I'm talking to my friends about something, he'll ask for more details about it. He touches my leg a lot and he got aroused once because my hand was on his leg. When I walk to the seat next to him, he immediately moves his backpack. But, he likes to hold my friend's hand and to squish her cheeks whenever I'm around. He also put his arm around her once. Does he like me? Does he like my friend? Or does he think of us as just friends?