Will anything happen or do you think it's unrequited feelings??

Well I hate to put it like this but you really can't expect more out of the situation than you're getting. The problem with FWBs is usually someone ends up getting hurt. It's nearly impossible to have sex with someone on the regular basis and not gain some sort of affection for the person, particularly for women.

Now it's also possible that he likes you as well but doesn't know it. Are you going out with other guys? Are you sleeping with other guys? Does he know that you are? If he knows you're not having sex or dating other guys, he figures you're there when he needs you and is taking advantage of that, whether he realizes or not. Going out with some other guys and bringing it up would be a good opportunity to see how he feels about it. Men aren't great at hiding jealousy, and that's always a sign of feelings.

If you're already dating or sleeping with other guys, be sure to let him know that. If you're dating/sleeping with other guys and he knows and doesn't seem to care at all, then he probably has no feelings for you. But there's still a slight chance so it's really something you need to bring up in conversation. He may just be dealing with how you two's relationship is now because he doesn't want to alter it in a negative way by badgering you about other guys you're dating. If you bring it up and he gets upset, he has some type of feelings for you. If he doesn't blink, then that's a good sign that he only wants to screw you.

Which I would also like to mention on, which is that I would stray away from FWBs. Again, someone usually gets hurt and I think it's a little cheap to put out without even being in a relationship, especially with a guy who you already suspect doesn't see you as more than a booy call. You're only damaging yourself in the end because you're feelings are growing stronger, possibly into love, while his remain the same. Eventually, if he doesn't like you, he will get bored and move on and you will be left with a very broken heart.

I'm sure you're not cheap, so don't act like it. God Bless, hope things work in your favor. I personally know what you're going through.

yep if you want to see if he thinks of you as anything more or wants anything more, just stop having sex... if he still wants to hang out with you, that's a good sign.

If you want a chance at a relationship wth this guy I would stop sleeping with him. Right now he is getting all the perks of a relationship without having to deal with all the drama. So it is very unlikely he will try to pursue a relationship with u. Do you guys hang out and so stuff besides sex?
I would stop the sex and tell him that because you have feelings for him u'd rather not sleep together. Still hang out ang go to movies or whatever but try not to be around as much. If he is into you he will prob start to miss you and maybe something can happen.