Advice for a friend and a crappy boy she is dating?

I'm trying not to be so negative but this guy keeps walking all over her! He spend 4th of July with his EX girlfriend and he spent the night too because she was'having a really hard time with the break up'. Since then he's been over there to"console"her 2 more times&now he is asking my friend to drop him off at the airport so he can fly out to Oregon to see his"friend"who happens to be a girl. He also told my friend that he would like to be single but he knows that she won't be around when he comes back so he is jumping right into the relationship and also that he feels like she is'the one'and that he could be falling in love with her.I want to tell her that he is scamming her but she is so into this guy that she won't listen to me!Before I knew he did all this, he seemed like a decent guy but I just know that he is going to hurt her probably even worse than he has already!What can i tell her?Or should I just let her live her own life and keep my mouth shut?

Hello there,Well, I suggest to tell your friend about the positive side of the guy then slowly tell her about negative sides of him. remember not to insist or pushing her about your idea, do it smoothly. tell her only and only once. let her decide, even if she chose a wrong decision, let her face the consequences.Cheers.