Men want to be wanted, needed and appreciated. It's just the way we are wired. But we should not look for love in the wrong places. Have some self-respect. Don't be a cuck/simp. Focus on being the best man you can be. You might find a woman or you might not.
The problem with slutty women is that there's never one around when you need one. This one is wasting time talking to this guy when she should be in the parking lot in some guy's car. Or smoking a pole behind a dumpster. At least she could do is ask it the guy if he'd like a handy. She wouldn't even have to stop talking.