Extreme waswasah- urgent quick question

Asalamualaikum hope you are well may Allah reward you. There is a hypothetical man who thought about divorce as he’s angry at his wife. He imagined a divorce scenario in his mind, but he never intended to divorce his wife in real life. In the imagined scenario, he thought that if his wife asked him why he is doing it, he would say “nothing.” While thinking about this imaginary scenario, he accidentally said the word “nothing” out loud in real life, without intending any divorce, and without saying any wording of divorce.hes unsure why he said it and He doesn’t wanna leave at all. Does saying the word “nothing” by accident — after imagining it — have any effect on the marriage? He is scared as the word nothing was in his thoughts and thats what slipped from his tongue irl only thr word ”nothing”