<human>: Give me the gist of the text in a nutshell

I don't know if this is the right subreddit to post this but I'm stuck in a conversation with a guy who is in a few of my classes, and I think he might like me. 

I'm currently in a happy relationship and I want to tell this guy messaging me on facebook to get off my dick.

 My boyfriend is in one of my classes that facebook guy is in and we're very open with our relationship.. we think the guy might just be oblivious of my boyfriend or in denial of us dating. 

I'm not sure if he actually likes me, but my friends seem to think so. He never talks to me in class and normally all our FB conversations are about our classes and about me because he asks a lot of questions.

 I want to tell him to take a hint and that I have a boyfriend but I really don't want to be an asshole, especially if my friends are wrong and he doesn't like me and he just enjoys talking to me.

 I'm pretty new to this subreddit, so I'm not sure if this is the appropriate post for it. Any help is appreciated.
<bot>: There's a guy talking to me on facebook, I have a few classes with him but I'm in a happy relationship with my boyfriend and I want to tell this guy that I'm in a relationship in a polite way.