People like your colleagues are typical people who take themselves too seriously. After all, you asked him out first. His performance is also warm-hearted, but he is a little lacking in emotional intelligence, too self-centered and divergent in thinking. You don't have to refuse him too directly to have a conflict with him. You can say politely, yes, you have a point. I will think about it. I went back to search or something. . And so on. Just like your colleague, the more you bicker with him, the stronger his desire to express himself and the more he wants you to agree with him. Direct refusal is not the best way.