Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input: My girlfriend has a friend that is catfishing her boyfriend.  She told me about it and I feel like it’s a pretty shitty thing to do.  We’ve hung out with them as a couple several times.   While I don’t really consider him a friend, he seems like a decent enough guy.  My girlfriend told me his girlfriend created a fake Facebook account, set it up with fake pics and added a bunch of friends and then added him.  She’s “getting to know him” and will eventually try flirting with him to see if he flirts back.  

I’m conflicted.  I know it’s none of my business, but my gut is telling me I should say something to him just out of principle.  

telling a guy I know his girlfriend is catfishing him