A male classmate in elementary school said that he liked me before, but now we are both married. Sometimes we chat on WeChat, tell jokes, it’s nothing like that! ?

It’s nothing to just chat normally. Moreover, the love I had when I was a primary school student was purely because the children found it interesting. If they thought other children were more fun and interesting, they would feel like it. Interesting people that everyone will like. It's not the kind of feeling we get after we understand love. It's nothing to chat with normal friends. Of course, it is not recommended to develop other relationships privately under the guise of friends or classmates. That would be abnormal. After all, you are both married, so you should know how to control the direction of your relationship, right?