I'm going to tell my friend to break up with her boyfriend
Why would you want your friend to break up with her boyfriend?
I think that her boyfriend is hot and I want a shot at him.
Trying to steal your friend's boyfriend by interfering in their relationship is sneaky and manipulative. If you want a boyfriend then go out and find your own.
I wouldn't steal a boyfriend. I just want him for a few nights.
That's even worse - breaking up someone's relationship to just have a fling is harmful to all people involved. You should respect your friend's relationship and find someone else - there are plenty of people out there!