He takes my friendliness and I guess he thinks its flirting. Or maybe he thinks there might be something between us. Anyways he's always commenting on picture and leaves comments such as "your're so pretty" or "you look beautiful" and when I post some status of me missing my SO he comments and say "awww i miss you too" and when it comes to messages, he sends me some and starts say "oh you dont want to talk to me anymore?

I already told my SO today and im waiting for his reply.