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: I’ve been friends with this girl M for nearly 2 years and been with my girlfriend, E for also nearly 2 years. Originally E and M we’re friends and got along but about a year down the line they started to dislike each other and not get along. During this year period of them disliking each other M and I have still been friends and talk regularly and recently M invited me on a night out and didn’t invite E. Am I an asshole if I go and stay friends with M or should I side with my girlfriend and stop talking to M?

being friends with a girl my girlfriend hates