You mean EX-boyfriend

please break up with that shithead. you deserved better. that is all. best of luck.

How do you know? She could molest poodles for all you know.

There’s no need for that. He’ll probably dump her for being a stick in the mud.

Should have taken the car home and let him hitch back with his friends. Or at least to some place comfortable if you wanted to wait vs possible car theft charges.

Well if there’s snow there is water so, and almost food if you found ice

Sounds like you should not have gone in the first place.

Now you know how much he cares about you.

Aka, "Not at all" in case that wasn't clear enough.

Assuming he left you the keys to the car. Why wouldn’t you have just taken the car home and then picked him up later or make him take a cab home.

I'm so curious what his thought process was! Did he think she was faking to ruin his plans & he was determined to have a good time in spite of it? Imagine being so narcissistic you twist someone else's illness into an attack on you. Or maybe he's got a pathological compulsion to finish what he starts, no matter what. Maybe there's nothing really wrong with him except selfishness.
Whatever his deal is, hopefully he's now the ex-BF.