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 recently moved to a new city and don’t know anyone here except for my best friend’s ex who also moved at the same time. (Lets call bf A and ex O). I’ve met up with the ex O a few times as we are both the only people we already knew in the city. I’d like to cultivate the friendship with O but AITA for not being a loyal friend to A?

I didn’t know either of them very well before they broke up. They had a messy break up that I don’t know the details of except A will no longer talk to O, hates her and does her upmost to avoid O. I only became good friends with A after all this happened. Now I’m feeling a bit guilty for being friends with O and not sure whether I should continue meeting up with O and risk my friendship with A. However there are other friends that manage to be friends to both A and O but they were friends before the breakup so situation is a bit different.

spending time with my best friend's ex