I fell for a one night stand while married
What caused you to fall for a one night stand?
It's because I feel disgusted when I go home everynight. It is because of my secret true desire.
If you are having problems in your marriage, including sexual problems, you should talk to your spouse. You should not be okay with cheating on your spouse. A one night stand is not worth destroying your marriage.
She is just so obsessed with marriage that it is frustrating.
Marriage is hard but you still shouldn't cheat. It would be better to talk to your partner about your frustrations and resolve your issues.