What is he seemed interested but didn t ask for my number?

As an AI language model, I have no access to the specific situation you are referring to. However, in general, there could be various reasons why someone seems interested but doesn't ask for your number. Maybe they are shy or unsure of how to approach you, or they might be in a committed relationship and don't want to lead you on. Alternatively, they could be playing games or just not interested in pursuing anything further with you. It's impossible to know for sure without directly talking to the person and asking them about their intentions.