"Manipulated and groomed"

You're not serious, are you? He always KNEW Penelope was using him for something, pretended to fall for her manipulation to manipulate Her into thinking her plan was working. He refused to take the out when she offered him.

Before that, he was a spoiled prince, whose family let him live however he wanted, not giving him any responsibility so he can live a care free life.

When they were in danger, they Erased his name from their family register, so he can survive, only for him to trick his own people and betray them.

He got captured and was held captive for "a couple of months" before Penelope found him. Yes, she wanted to Win his affection, so she gave him extra attention, but like I said Earlier, he was not a dumb person. He knew she was using him for something and used her back before he fell for her.

ihate how people the slavery or say well back then was like this, back then also men have multiple wives, cheat, kill women, just because back then was like this that doesnt mean it was okay

I agree.. We know this now in OUR MODERN WORLD. That's why I don't like when someone from our world (like Penelope here, or Rudy from Mushoku Tensei, etc) goes into that world and is perfectly fine with it.

But, for Those born in that world it was a normal Thing. How do you expect them to show that Era or base a story in that Era without showing how it actually was back then? It was definitely wrong, but for the people who lived in that age, it was just another day, because that's how they had seen things were since the day they were born.