What is he bought me a plane ticket to visit him?

As an AI language model, I do not have access to the specific details about the situation you are referencing. However, in general, if someone bought you a plane ticket to visit them, it can indicate that they want to spend time with you, whether it be for romantic or platonic reasons, and are willing to financially invest in making that happen. It could also suggest that they value your presence and want to strengthen your relationship by facilitating a visit.