I want him to want me

I’ve been friends with this guy for a while and we’ve kissed a few times and acted like a couple, but I’m sure it dosen’t mean as much to him as what it does to me. We were both in a realy long relationship with different people and broke up with them round about the same time, he says he dosen’t want anything serious and is seeing a few other girls. He says they don’t mean much to him or he would only be seeing one girl. I don’t want to be just another one girl! My question is how can I get him to want me ? I KNOW he says he dosen’t want anything serious but I just want him to at least start seeing me and only me. I want him to want me without wanting other girls, I know I’m selfish :-).