Saffie,

The unfaithful spouse almost always blames the betrayed spouse for the affair.

That's common.

Hun...it's not your fault. He chose to handle his personal problems with himself/your marriage by sleeping with another woman.

So...look at my suggestions about certain types of hobbies to deal with your self-esteem. Helloooo...... ;-)

For the next month, don't "work on your marriage". Be nice to your husband. But, more importantly, find yourself, have fun, build your personal sense of strength, power and confidence.

--Theoden