They pretended

They would both pretend at night during sex that they were having an orgasm
For her it's real easy
She could just say that she's cumming, make some noise and that's that
For him, when he said he was gonna cum, he'd pull out and cum in his hand
She wouldn't know, since it was dark in the room and he made it sound so real
Sure he was hard, but he was thinking of other people he would see throughout his day
After about 10-15 minutes the act was over
They both would ask each other how it felt
They would both lie and say,
Great!
They would turn over and go to sleep
They've done this for several years until they both found other partners
She found another women and he found another man
They stayed married even though they weren't attracted to each other
They lived sort of happily ever after