Arranged marriages are only for something and will not untimely lead to happiness. You are better off with a non ritch partner of your own free will than a partner that may give you access to money or a better degree. Love can make you happy, things can not do so.
This will show that you will never cheat on your wife because you love them. Also you have dedicated your life to them so you don't have an excuse about being forced into the marriage. This means that you accept your own responsibilities. This is what is right. So don't argue with me!