What should I do about my friend?

I think hes lonely and its gotten to the point to where since hes your bestfriend he wants support and help from you but since you just disregard it with the standard "You'll find someone" angle (Even if you mean it) and since you have girlfriend he is jealous of you. I know he's being a bxtch right now but hes your friend, you should give him some pointers and tips and support. He is being an ****** to you because he is really frustrated and he thinks that you don't give a shxt about him. Just understand hes going thru a rough time right now and he wanted you to help but you didn't so hes pissed at you.