He has good material conditions, but he kept it from me until he fell in love. what should he do ？

First, if you really want to be with him, then you can pretend that you don't know her real financial situation and be a simple love object, so that the other person can enjoy the details of love more.

If two people are not completely sure at the beginning of love, there is no need to expose each other's bottom line. At this time, we can maintain a good relationship and let the other party feel confident enough in this relationship. Maybe one day, the other party can consciously tell us all the economic conditions. In this way, two people can maintain a stable love relationship and enter the marriage hall smoothly, which is also a happy marriage.

Second, if you don't really want to be with him, or think the other person is too smart, then you can take this opportunity to tell the other person clearly and say goodbye.

If your love is deep enough to get married, but the other party still doesn't tell you his financial situation, then it means that the other party has enough talent. If you are a simple person, then you can't be with such a smart person, and their values will be different. At this time, you can also tell the other party directly that you already know the financial situation of the other party, and you can't accept his behavior and formally announce that you are breaking up with him.

Thirdly, if you really want to be with each other, but you can't understand each other's behavior, then you can find an opportunity to talk to him and see if you need to continue your relationship.

After dating for a period of time, you did find that the other person had enough economic conditions, but didn't tell you. Then you have to determine whether the other party is giving in the process of your usual relationship. If the other person is willing to pay, it means that he is not a particularly stingy man. You can find an opportunity to talk to him and see if the other person is a person with deep talent or a person who gets along with you, so that you can decide whether you need to continue to associate with him.