At present, it belongs to your personal property, and the loan in your name is your personal debt, which will not change because of marriage. But if you can prove that the remaining loan was repaid with your personal property after marriage, it is still not the same property.

If not, it belongs to the other party who repays with you. It's nothing. Only when divorce property division is involved, the other party will get corresponding compensation.

If there is anything you don't understand, just ask.