Is he into me?

Okay so I [19M] have a friend also [19M] and he says he's not gay, however when I'm over at his house we sleep on two different beds he almost always finds his way to the one I'm on. And lays really close to me like touching me.He has had girlfriends in the past, so that's why I'm skeptical of if he's into me.

He always makes gay jokes like "can I suck it." And all that alongside joking about seeing my equipment. I kinda like him and whatever, but recently he's been a lot more touchy like he rested his hand on my lower back while we were laying on his bed (alone) and like grabbing me from behind by the stomach to politely move me out of the way.

I want to know if I'm being delusional or if he might be gay or at least bi. We also watched gay and straight adult videos tg to see if he was gay and he said it didn't do anything. However I asked a bisexual buddy of mine and he said gay adult videos Don't do anything for him yet he's in a gay relationship. So do y'all think I'm being delusional if he might be gay