Once a cheater, always a cheater

I've been married to my wife, going on 10 years. In those 10 years she has cheated on me 3 times, that I know of. I on the other hand have not, nor will I do so. I have a couple of questions...

1. Am I dumb, or just plain stupid to keep giving her these chances?
2. Is it true what they say "Once a cheater, always a cheater"?

Thank you

Maybe you can give her what she is looking for, so she will not have to cheat on you. Is she missing courting, orgasms or whatever? Ask her!

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Letter from a reader: You are not dumb or stupid; you are a loving person. But at some point, you have to decide if you want to be treated like this forever. It won't stop now that she has established a pattern. You should get therapy and separate physically from the situation while you do so. It will take time, but you will be shocked at how much better you start to feel after you stop putting yourself in a situation in which someone is deliberately humiliating you. Shame on her!
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