You, personally, have to decide what you will, and will not, tolerate in your marriage and what the consequence for a violation of those ground rules will be. Your spouse also has a right to to do the same and there should be an open, honest and frank discussion of what those rules are and how to handle the violations. Lets be honest, you're going to mess up at some point and the situation will be easier to bear if you already know the consequences. However, it is important to determine if your rules are reasonable and can actually be complied with. If they are unreasonable then no one will be able to measure up, even if they are someone you could be happy with if your expectations were just a little more realistic. But you also have to make sure your rules are not too lax, as this can result in living in a marriage that you cannot be happy in without giving up everything that makes you who you are. No one deserves that...