@BackInTheGame78
This is obviously a more extreme case but behavior on this spectrum, albeit on the more minor side, is not all that uncommon and something I've heard of from both sides, though more with men. This is the biggest reason why I'm personally very uncomfortable with the concept of OLD/apps because you really don't know who you are talking to and at the end of the day these are total strangers on the other end. When you interact in person you can generally get a pretty good idea as to what you are going to be getting.
With this case I can already see one specific issue, which was them texting back and forth for days prior to their arranged meeting. I feel the problem with something like this is you develop some odd fantasy about the person you are speaking with and when you finally do meetup it of course does not live up to it. This man developed an obsessed fantasy about a woman he hasn't even met yet and when she flakes on the date it sets him off. He's probably experienced this before, maybe even had a same type of outburst, and it triggered him. With that aside, a lot of women do in fact lead men on for a variety of reasons on dating apps and sites. Many are often just bored; others may just want some validation or who knows what.