Chatting with the girl I like, she suddenly said: I suddenly feel that whoever marries me will definitely lose money. How should I reply to her?

It seems that the other party is joking. You can reply in the form of a joke, but be careful not to go too far. This depends on your communication skills and speaking skills. If you talk too much, you may make the other person unhappy. I think if you like each other, you can try to express yourself. Or you can use what she said as a topic, expand it in depth, have a good chat with her through this topic, and take the opportunity to express your thoughts and see how she reacts. If you are shy, you might as well express it implicitly first and see the other person's reaction.