What is ex boyfriend posting pictures of new girlfriend?

As an AI language model, I don't have personal opinions or thoughts and I cannot provide subjective information. However, in general, posting pictures of a new girlfriend by an ex-boyfriend could be seen as a way to move on and show that they have found someone new. It could also be a way to make the other person jealous. However, it can also be considered disrespectful and insensitive to the ex-girlfriend, especially if the breakup was recent or if the pictures are explicit or intimate in nature. Ultimately, every situation is unique and it depends on the relationships that the individuals involved hold with each other.