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 have a couple of friends (all white M early 20s, UK) who helped me out a couple of weeks ago, letting me crash on their coach while I searched for an apartment after moving to a new city. They are overall, nice guys. However both of them use "n***er" extremely liberally to describe black people and other racial epithets to describe other minorities, racial or sexual etc.  
This makes me, another pasty white dude very uncomfortable as although the words do not offend me personally, they have to potential to cause others to feel offended and uncomfortable due to the weight that they carry. 
I confronted them about it and was told that they could say what they wanted under their roof and that it was in private and not hurti mg anybody. Am I the asshole for calling them out? I've started to cut them off by not answering texts purely because I feel like it's shitty behaviour. 

asking my friends to stop saying the n word