If you log on to a public forum with a story like this, you can expect to get some strong opinions. Personally, I agree with whoever pointed out that the kind of guy who would sleep with his brother's wife isn't a good guy. Then again, he's getting you, a confirmed cheater, so I guess you deserve each other.
And Sunnybeach, don't report stuff like this. Being called a moron is the very tip of the iceberg here. Look around and get a sense of the general tone of the forum before you start having a hissie and running to tell the teacher. I support Vashti in her assessment of your intellectual capacity.