Affairs are about broken people doing broken things to those that love them.
Not about the person who loves them.
My wife WAS unable to orgasm at all, no matter what I did, or didn't do, and she didn't fake it.
She simply refused to talk about it, and intimated that she was doing well, but nothing I saw indicated any type of orgasmic response or effect with sexual activity.
We had sex a fair amount at first, but not what I would have liked, but after children it dropped to nothing until she wanted to have another child, as soon as the test was positive she stopped almost completely. Said she didn't care for sex that much.
Yes, I often wished that I was with an orgasmic partner, you have to realize she never had orgasms and this included with herself, and had plenty of opportunity to cheat or to leave. But, I was patient because I truly loved her, for 18 years, I was encouraging, I was understanding, and I was not critical of her body or her ability.
Who cheated? She did - had done so 9 years into our marriage.
Did she have orgasms? No. Was it exciting? Yes, but it quickly petered out to nothing more than "go out and get fucked by OM and go back to regular life". Was it me, was it him? No, turns out that she'd probably had around 200 sexual partners before she met me, many random, some were pure and simple rapes, been married, divorced, and never once had she had a single orgasm before.
Was she "broken" because she couldn't orgasm? NO!
Did her lack of ability to orgasm give me reason to cheat? NO! I could have left, I didn't have to cheat.
She was broken and couldn't orgasm because of it, couldn't enjoy sex because of it (unless it was forbidden which is where the cheating came in), and sex with someone who was close to her brought up to many fearful issues. It was only when she began to work on the problems she had psychologically that she was able to overcome this. 18 years into this marriage she agreed to go back to counseling, told about her abuse history, eventually confessed the affair, and I kid you not she began having orgasms 1 week later, even before we actually got to the marital counselors office.
Does this apply to you? I don't know, but it applies to your husband. THERE IS NO EXCUSE FOR CHEATING.