1. Moral integrity: Concealing marriage history involves honesty and morality, which will have an impact on one's own values and morality. If a person thinks this behavior is unforgivable, he can choose to end the relationship.

2. Worry about the future: If you are worried that your boyfriend's marriage history will have a negative impact on the future, such as the emotional burden or economic burden brought by his previous marriage, you can choose not to forgive each other.

3. Attitude of the other party: If you don't show remorse or respect for your attitude after hiding your marriage history, then you can think that the other party is not worthy of your forgiveness.

4. Marriage history is a person's past marriage experience, including marriage, divorce, remarriage and other information, which is recorded in personal files, resumes or other related documents, reflecting a person's marital status and family background.