What's Wrong With Me?

I get inconsolable when people cancel on me. I get this idea in my head, I invite people, they say they're gonna come, I get up, I get ready, and they cancel. And I can't stop crying. It's not their fault necessarily... they're busy, they're tired, something came up... it's always one of those. But I still can't stop crying. My mind, instead of being rational and realizing they really have something else they need to do, immediately starts trying to figure out what's wrong with me. Why do people always cancel on me, why the hell are they so rude? I get angry and sad and overreact. And no matter how much I tell myself that it was nothing against me, that they simply had other plans, I just can't stop myself from crying, from trying to lash out at them. My mind begs the question, do they even realize they're being rude? Do they even realize I had planned my day with the specific event in mind and they don't have the decency to cancel on time? I mean, I get it, I get too worked up about things. I get excited for events and then when they get cancelled that excitement turns into disappointment... But I start shaking from trying to keep it in... I just wanna scream sometimes, but I can't... I have to pretend like I'm normal and I understand that things come up and shake it off... but it really hurts inside... it really really hurts. What the hell is wrong with me?