Is there any need to say a thing here?
Obviously you do not like the guy for his awkward response.
And if I have to comment that the guy was somehow right with his response to his bae, won't you see me as anti-female? 😂

It's funny but the guy has got his feeling. Out of 10 guys, 8 would feel very uncomfortable with her having accepting the drink and even sat down with another guy in his car. The rest 2, even they feel better, there are hundreds of thoughts rumbling in their minds.

It isn't that he didn't know she must have been frustrated by the harsh sun and having to wait like its forever, but most men do not like to have the picture of that scene - where you perceive your girl finds comfort around another dude. Most men will feel insecure about this.

People may call this jealousy. It is fine and normal. But it is more painful and if not you should think twice if after explaining the whole drama and the guy only gave a smile and maybe offer a thanks to the dude for entertaining his girl.

Some things unknown to us might have got held him back and ran behind the the time. So saying the guy was wrong may be very unfair.
Ladies should also understand that "while trying to be honest, all clothes aren't meant to be sun-dried.