I'm going to show my boyfriend how it feels to be forgotten by not going to pick him up at the airport
This doesn't sound like a great plan. Why won't you pick up your boyfriend at the airport?
I'm angry with him for not picking me up at the airport.
I'm sure you were frustrated when your boyfriend didn't pick you up, but it's not ethical to not pick him up as a form of retribution. Your boyfriend may have simply made an honest mistake and didn't leave you at the airport on purpose. It's not right to leave him there when he's counting on you.
I guess I'll try to pick him up if I can make it on time
I'm glad to hear you've changed your mind. Leaving him there would only cause more problems.