Relationship troubles :(?

I started dating this extremely nice boy on the third of this month. The problem is, I was never really attracted to him, I just like the idea of having a boyfriend. And everyone (friends and family) wanted me to date him. I agreed hoping I would learn to like him. He has never done anything wrong and it is obvious that he is smitten with me. He is so nice and texts me all day and buys me things and tells me how wonderful I am, but for some reason I cannot bring myself to like him back. I just don't know what to do because I don't want to hurt him, but I can't stand leading him on. And I also don't want to tell everyone that I never had feelings for him since I acted like I did. And I really don't want his family to dislike me :( plus, now it seems like I am really starting to have feelings for my ex again. We've been broken up for 2 years but it was a really serious relationship and I don't think I've ever gotten over it (even though I ended it). I don't know what to do. Please help.