Does anyone else experience MAJOR anxiety whenever someone cancels plans, especially last minute?  How do you cope with the intense feelings of abandonment and anxiety? 

My FP canceled on me tonight, and explained he was too tired and had a very long day at work. I know this is true, as his work is very demanding. He said it would be better if we see each other tomorrow. So logically I completely get it. But for some reason it feels like a terrible betrayal and abandonement, and a huge part of me thinks that he's tired of me now and is trying to avoid me and doesn't want me in his life anymore. 

I am really struggling to reply to his message normally and I have this urge to just leave it on read and ignore him until tomorrow and then do the same to him and cancel plans last minute. 

Why is everything in me telling me to do the exact opposite of what I should do, what a normal person would do? I am finding it very hard to cope with my feelings and feeling anxious and hurt. I hate feeling like this.