Guy on grindr said I ghosted him (rant)

I didn't respond to his message within like 5 hours when I was out with friends, and apparently this is ghosting to him. When I confronted him about that he said he could tell I was a douchebag and that I'd have no success in my career. Why are people on grindr so insecure about people responding immediately? Am I supposed to spend every waking hour making sure I answer every message within an hour? I really don't get the people on these apps nowadays.