How do you deal with a friend not being there for you when you're hurting?

've been talking to this girl for a long while, I really appreciate her and care about her very much so. Lets just say I've been willing vulnerable to her because I had good trust in her. I suppose with vulnerability comes humility.. Recently she hurt me quite badly, in a humiliating way. She didn't take my dignity but she did successfully make me feel like a fool. So I've been in a bad funk these past days. Relying on my best friend for much support, not like talking about feelings rather doing some type of activity like going to the ocean, etc. Anyways him and I some how lead our conversation to the situation I described above. Telling him how I've been hurting a bit lately. Only for him to tell me I'm seeming psycho cause I feel a sorta torn up. I'm an easy going, upbeat person.. very far from melodramatic. I rarely open up because we've all got our problems. But i opened up and this is what I received. That stung a little, too. I'm just confused on what you're supposed to do when your best bud lets you down when you need some help up? I don't really feel like dealing with telling him that it hurt cause that is quite dramatic. I understand that my big problem may very seem small to him cause he hasn't experienced it like I have..so he just doesn't get it. It's a hard problem that her and I have, I would simply spill my beans to her because she's the only one who would understand, however she has stopped talking to me..so I opened up to my friend which was a harsh failure. JUST TELL ME HOW TO COPE ALONE. and I will be golden! Thanks & have a good one:)