If a male colleague and other colleagues say something that makes people feel that you are close to him at dinner, why? He is not afraid of misunderstanding.

The male colleague said something that made people think you were close to him. This is just a joke between colleagues. It can be seen from the question you asked that you should have been working for a long time! Colleagues often tell jokes to enliven the atmosphere and say some ambiguous words to make everyone burst into laughter. These are just some skills of colleagues to enliven the atmosphere, and choosing to play this joke with you shows that your popularity is not bad and you can talk to everyone.