Arranged or not, he should have broken it off before being sexual with someone else. Maybe you enjoy being a cuck, not everyone does.
How many arranged marriages/engagements have you read about? They've existed throughout history and this one just like most, was for power. Paper is paper. Many arranged engagements have been broken off before marriages in these stories.
He didn't cheat because they never dated nore did they ever sleep together. They were not in a committed relationship where they agreed to be in love.
The leads were in a unique situation where they experienced animal desires and had to be together weither they liked it or not. Put yourself in their shoes, would you be able to hold back and control yourself? No.
How many times has this happened where the FL has fallen for someone else and not broken off the engagement contract before going for them? Many times. "BUT SHE'S A WOMAN SO IT'S OKAY!"
Calling someone names before even having and actual conversation makes you look immature.
People saying the ML is a cheater have never heard of an arranged marriage before. Their relationship never went past the paper agreement. He wasn't in love with her.
Delusional people.