What to do if you like a girl who has a boyfriend – See this now!

Never badmouth her guy

Do this at your own risk, risk of being thrown out of her field of vision. She would definitely not want to hear anything bad about her guy. After all, he is her guy and she does love him, still. Insulting her boyfriend also insults her. A little bit of humor is great, but overdoing it, especially at the cost of her boyfriend is something no girl would want to put up with.