Since October she's been working with some guy a bit older than us, he could be 23 years old. She got a crush on him. The problem is it's been 5 months and nothing happened between them and she still thinks something will. She told me she's the opposite of "his type" physically and he's the opposite of "her type" mentally.

He's an f-boy. At work he often talks loudly about his most recent date or hookup. Or about a lady he tried hitting up at the gym. He isn't interested in a relationship, but my friend thinks he's into her because he's giving her "mixed signals". And by that I mean being nice - getting coffee together during their breaks, eating lunch together, texting after work.

Sometimes he drives her home. One time they stopped by his place so he could lend her a "self work" book. Also this day he told her "I don't know what you're thinking, but I've never wanted anything more than friendship with you". I think it's pretty clear he's not interested romantically in her. Also many times he called her his "little sister".

I have never met this guy, but from my friend's stories he doesn't seem like anything close to a crush, let alone boyfriend, material. He's a douchebag. What should I do? I got so tried hearing the same story for the past few months, I don't even know how many times I told her he's not worth her efforts. I want to be a good friend but I feel like this guy has been everything we talk about, because even if I change topic it goes back to him after a few minutes.