It's normal to have urges, and since ancient times we've got the solutions for it legally, or through religious approach.

You had simply picked the wrong solution, so stop having affairs and work it out with your wife. Make her attractive, or teach her. Be more aggressive when conveying that while also helping her.

This could only be unsolvable if your partner have low sex drive. So stop the cap of trying hard enough already.

And you should know that it's not normal for people to cheat. It will broke up the family unit and communities overall. All because of the weak men & women who succumbed to urges.

At least TS should just pay up makan luar is my advice for now. Take it slow, and try to be responsible.