We fully understand his anger, and he has every right to be upset, but it seems like this guy has found the worst possible timing and way to break up with his unfaithful girlfriend. There isn’t really a good timing for a break up, but a crowded airport pickup area definitely seems like the worst place for it.
He probably couldn’t suffer an entire car ride without letting her know he found out about her infidelity, and so this man decided to get it over with as soon as he spots her at the terminal. This way, he didn’t even have to say anything, as the sign did all the talking for him. As far as airport pickup signs go, this is perhaps the strangest one we’ve seen yet.