I simply understand that what you call "pre-marital property notarization" means giving her half of the house? If written in this way, it can only be regarded as a gift, and the gift will only take effect if it is fulfilled. Although I signed it, I didn't go through the formalities for changing the real estate license. In that case, the gift will not take effect.

If you really want to break up, you can sue and ask for the cancellation of the Notarization of Husband and Wife Property and the cancellation of the gift.