(edit : I KNOW i will get over him, probably in two weeks honestly, but for now it sucks and hurts)
Most Helpful Girl
I've been there. I can imagine how hard you feel now, but I think the best thing to do is to give yourself some space and time to heal yourself - away from him. That's what I did and within some weeks I was over him.
It feels like a break-up because you've created some sorts of connection, even not to a relationship extent. Just think that, even if he's a friend without benefits and you two had great times together. When he called it a quit, you 'd still hurt, so it's perfectly fine to feel sad about this.
Just one advice, if you know that you (two) cannot really keep it only as friends with benefits, probably you should stop doing this - either try to set boundaries next time, or vow to have a relationship.
Hope this helps, and hope you'll get better soon. :)1