Does he like me or did I misinterpret his actions?

We go to the same school but we met in July in a summer camp where we stayed 2 weeks.I’m 17 he’s 15.We started talking the first day and before I knew it we became close and he was constantly/a lot of the time around me.A couple of examples(all happened there): he would tickle me very often, play with me, sometimes hug me, a few times brought his face super close to mine, kissed my hand one night, touched my hair a couple of times, when in the sea he often tried to get me underwater and our bodies touched a lot, joked often with me, told me I’m beautiful and sexy a couple of times, that my opinion matters to him, lots of eye contact and smiling, would subtly and not so subtly ask what I think about him(his looks and if he annoys me,if I talk to him just because he comes to me).Asked how my love life is a couple of days after we met(he said he asks everyone this,but he didn’t other girls in the group) and I didn’t answer him and he asked again the next day.He also let me sleep on his chest/shoulder while we were returning home.Everyone there thought he likes/is in love with me due to the huge amount of attention he gave me and and would tease him about it would sometimes confront him in public about it to which he almost always said ‘It’s not true,I like her as a friend only’’ and I would say ‘’I don’t care it’s not my problem anyways’’.I heard he tends to play with girls like grab their chin/cheeks and play with their hair and I saw him do this sometimes to some girls in our group.But he did similar things to our teacher too and they are related.He says he’s a pretty physically touchy guy with people, especially girls(that’s his nature) and he’s outgoing and nice.After the camp ended he called me one day later and since then he usually contacted me weekly through calls or text.One week after we ended hanging out in the park because he asked if he can join me.He tickled me a couple of times but otherwise it was casual.Then I left for 3 weeks during which I saw he contacted me and we talked again after I returned which was a couple days ago.If we are just friends why didn’t he talk at all to other girls from our group with whom he got along(he has all their numbers just like me)?He’s pretty busy daily with extracurricular activities(it’s the last week of break here) so if he still contacts me I guess I do cross his mind.Was he just friendly all along(like he claims we are friends only)?