I need to know if this guy likes me or not?

Im 14 and im at that stage where guys and girls well you know (hormones) LOL. Me and my bff went to this flea market/ carnival thing yesterday. We got bored and went to her house then we called are guy friend to come over because he was finally in town. This guy used to like me and my friend and wanted to date us. He said that he had a girlfriend so we just thought ok he wont try anything. But i noticed that he kept just staring at me. We were listening to music and then the song called kiss a girl came on and through the whole song he was singing it and staring at me. When we walked somewhere he always got behind me or beside me. I was laying down in my friends bed and he came and got in with me and was like hugging me and crap. Then we went swimming later and he fricken tried pulling my shorts off and touching my legs and knees. Then he would just follow me around the pool and didnt really pay much attention to my friend. Another thing that kinda creeps me out is that he always listens to me and looks into my eyes like hes engrossed in what im saying. Its kinda creepy so sometimes i have to look away. He did it to my friend too but not nearly as much. He said hes just joking and his girlfriend is cool with it. I dont believe him because he was being gross and i know that his gf would care. I thought we were just friends but now idk. He does things to my bff too but he does really weird things to me. We were sitting down at this picnic table and he was across from me. He would like reach over with his hand and touch my knee. Then my friend took his cell and he told me if i didnt give her cell to him that he would have to kiss me. He sometimes just ignores her and comes to talk to me. Do you think he likes me? because im almost positive that he does.