Why guy sometimes jokingly act sulky?

Typically, the whole universe know only girl like to act sulky over everything🤣 but when a man jokingly did it with me, im clueless hahah.. Once while we are on call, and once when we are on a date.. Not sure how to react, not sure why he act like that. Wanting to hear me comfort him? Or basically he has interest, and thats one sign?

Why guy sometimes jokingly act sulky?
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