A conversation with my ex boyfriend, mainly consisting of his excuses and him telling me what a great life he's leading now, and myself being unimpressed, has led to an even better mood.
I'm actually glad that he did what he did, because it means I've had the chance to see what type of person he actually is and that I wasn't entirely disillusioned.
This is why to be friends with someone beforehand is good. I know I haven't made any mistake now. I'm happy.