All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.
Since you do not know whether or not your husband conditioned something on you and he, himself, does not remember doing so, then what you mentioned beforehand does not affect the validity of your marriage contract, therefore, you should avoid the whispers of the devil.
You should know that the condition which affects the validity of the marriage contract is that which occurs after the marriage contract and on which the husband conditioned divorce if his wife went against such condition, like the husband conditioning his wife not to go out without his permission and if she does she would be divorced, and the like. As regards going against other conditions and orders from the husband, then this does not lead to divorce but it is a disobedience to the husband because a wife is obliged to obey her husband. The same thing applies to not fulfilling a promise which one is legally ordered to fulfil.