does my taken friend (M19) want me (F19)?

I (F19) have this dear friend of mine (M19) who I recently started to like. I've known him for nearly three years but we've been talking a lot in the last two months, sharing our experiences and relying on each other. He's someone who has a really hard time trusting and talking about his needs, so it's really precious to me that he told me about himself. It's also not something common for him to trust so quickly (so he has told me) but I was always glad he found someone he could confide in (me) because before being my actual crush he is my friend and I only want the best for him. The fact that he opened up to me so quickly is really messing with me lately. He also told me some of his deepest thoughts and problems in the moment they were happening, something he should have done with his girlfriend (also F19). Yes, girlfriend. That's the major problem for me, he's taken. I recently came to know some of his past traumas, something that not even his closest friend in our friend group knows. He's also really physically affectionate, this is also confusing me. Don't get me wrong, I'm not the type to say that people in a relationship shouldn't even hug their friends or something. A relationship shouldn't interfere with your friendships and how you express yourself but there has to be some moderation obviously. Just last night, at one of our friend group's sleepovers, I was sleeping in the same bed as him in his arms (he initiated the contact). I didn't mind it, really, because what matters to me is not forcing him, but idk if cuddling your friend so closely while you're taken is normal. He also sometimes kisses me on the cheeks when I say something sweet to him. At the same time he talks to me about his girlfriend sometimes... it's giving mixed signals. I have no intentions to ruin his relationship or initiate something more, because I respect him and his girlfriend, but I also wonder... Do I have a chance? (also given all these things)

Sorry for my bad English and for the ambiguous title.

TL;DR: My crush acts ambiguously with me but he has a gf that he seems serious about, do I have a chance with him?