Why start problems for yourself and your husband over a kiss. Unless there is something deeper going on between you and the person you kissed and unless you intend to continue on kissing this person and/or going further, just leave the matter alone. If this is something that is going to continue, meaning it wasn’t a mistake you made that you don’t intend to make again, then you should anticipate it coming out in the open at some point and inevitably causing some problems in your marriage. If you have the courage to face what comes then you can tell your husband now and accept the consequences. These things always go a lot worse when they are discovered rather than confessed.
Do I tell my husband I kissed another man?