My colleague invited me to get married. What should I do?

It's best not to go, and then ask someone to bring a red envelope. The bigger the better. Then she will feel guilty, then she will have a good impression on you, and then she will have a friend. Be smart ~ this method works in both cases, that is, 1. She invited you symbolically; She really invited you, but ignored it. The ultimate purpose of your going to the party is to get on well with her. Now that the goal can be achieved, it is not so important whether to go to the party or not.