Why would a guy talk to you if he has a girlfriend?
A guy may be talking to you because he genuinely gets a kick out of you and enjoys being around you. It doesnt necessarily mean theres anything to it. Your humor could be a nice reprieve from the stresses of his actual relationship, or a fun step outside of his normal social circle.
What to say to a man who has a girlfriend?
Simply smile and say “lucky girl” or “my loss.” Thats it. Enough said. If you think theres potential to become his next girlfriend, then make sure you fill the friend spot while he remains with his current one. Keep talking, flirting and asking questions about him to hint that youre interested.