Thanks for the replies! Yes, he is my only snake.

I have seen him behave like this in the past a few times although it's pretty rare. I noticed it happening a lot more recently so it could be related to him being stressed from moving homes a few months ago.

I agree that this doesn't quite make sense as behaviour specifically related to breeding and it more likely suggests that the snake is not in a mood to be touched or bothered.

My BP only acts like this inside his enclosure, if I take him out he immediately becomes chill and docile.