That's it, really, I'm mixed race, and know this is a racially derogatory term. He just starts singing the term out of the blue followed by my name when he is annoyed with me.
Frankly, he is 6 so I doubt he knows what he is saying, but I'm sure his mum, who is an avid Daily Mail reader does. His dad sometimes tells racist jokes but doesn't seem to grasp the idea of why I don't find them funny, he thinks is just "normal" and "what people do".
I have been thinking of ending the relationship for more than a year, this is feeling like that tiny last straw. Am I over reacting?