PLEASE HELP ME!!!!

my friend james invited me and 2 of my frineds to go swimming and it turned out one of my frineds liked him so my other friend asked me if i liked him and i đã đưa ý kiến yes(she didnt ask me if i liked him as a friend,to make it clear i like him as a friend)then she runs over to him and asks him out and he says no cuz he has a gf then the tiếp theo time he comes over is on my b-day and he spends the night with me and my frined who told him that i liked him.so she teels him agein that i like him then the tiếp theo time he comes over he tells me that he broke up with hiis gf then my lil bro comes in with a box of phim chiếu rạp and we watch con nhện, nhện man when the movie gets half way through my bro leaves amnd james wrappes his arm around me,wat do i do if i dont like like him and i dont wont him to think that i know he likes me