I need a second opinion!?

OK, so i would like an unbaised opinion on my situation. I'll try to make it as simple as possible

-I like this guy who is named Ethan

-Ethan has a girlfriend named Emily who is now at university while we are still in highschool

-Ethan sometimes makes comments infront of me implying he doesnt want to be with his gf anymore (Eg he said-infront of me and some of his guy friends-that he was gonna give her the wrong date for prom so he didnt have to go with her)

-I have heard from his BFF that he likes Emily's Sister Kenzie (Kenzie is younger)

-Ethan finds any excuse to touch me (eg. today he said he wanted a hug, then grabbed my leg and hugged it...he ended up pulling me onto his lap with my legs wrapped around him and his face burried into my chest...it was a very close embrace in the middle of the library nonetheless! and he wouldnt let go)

-He always gives me highfives in the hallways and starts our conversations but will NEVER start texting me

-Ethan is very flirty with a lot of girls even infront of his gf, he is the class clown type of guy and is friends with the entire school

-I am a more shy girl but we talk often enough, im just not as outgoing as him and i dont have a large group of friends...i am in no way an outsider though (i am president of the athletic and spirit society and am tall thin and athletic)

Based on these facts what would you think...does he like me?

What would you do in my situation?

Additional Details

just a point i want to add is that although he flirts with other girls he is just a goof ball he is the kind of guy that would NEVER be unfaithful to his gf...he is ok to flirt with girls infront of her because he knows that she knows it means nothing to him. (although he has never done anything with me infront of her thats the point which i believe sets me apart from the other girls...if you read this and still believe he is a player please let me know :D)

Thanks to everyone!

PS message me for help with your own sitautions :D