Does this guy like me?honest opinions please?

Hi I'm 18 and he's 17,and I'm really confused if this guy likes me.Apparently we flirt a lot when we talk to eachother.About 3weeks ago one of his friends jokingly asked him if he had a crush on me,but instead of him denying,apparently he smiled but stompted off.People kept speculating it and i when I tell him on chat he tells me how angry he is but he still doesnt deny it.We talk to eachother everyday including msn,and we always dirty questions to eachother as a joke but now his friends are saying he's not like that with anyone else :S He also compliments me a lot in my photos saying how beautiful and pretty I am.He also literally does anything i ask him,and when his friends do he doesnt always do it.He also tells me on IM chat that he loves me but I don't know if he means as a friend or more?what do you think