Now I'm fucking mad

Today was supposed to a tough long enjoyable day.
Much work to do in the morning at work.
Participation to a recruitment forum organised by my company in the afternoon.
Internal meeting of interested members of my Business Unit to present current activities in the afternoon.
8:10AM to 9PM, long. Tough. But enjoyable.

It turned out quite the opposite.
Arrived later than planned due to traffic jams in the center.
When the hip cool guys from work arrived (that includes miss A), I suddenly became the center of their interest, not for the best. Told them to shut it, got told that "I have no humour". Rinse and repeat at various points of the morning.
Afternoon was not up to my expectations, tricky questions from candidates on points that bore me to death (hierarchic evolution, forced mobility, yada yada). Got freed early so went back to work to get stuff done. Computer locked by boss for upgrade, and same poetry from the group. Much laughter about how today was "my day".
Evening meeting was ok, but I had turned sour by then. Which means that the meeting felt useless, too long, and Mr Cool spent it blabbering with Miss Cool in the background. Can you feel jealousy?

So now I'm boiling with anger. I'm not one of the cool ones. I'll never be. And I despise Mr Cool for being able to be Mr Cool with no fucking reason whatsoever. And I despise the Cool girls for choosing him and not choosing me. I despise myself for caring about it so much and for caring about "her" so much. This is driving me insane.

I'm supposed to be at work in less than 10 hours. I'm never going to sleep tonight. Too much anger, too much stress, hopelessness.

Why do I care so much?