1- greatest estate engineer.
2- 4 cut hero
3-top tier providence.
4-I Became the Tyrant of a Defense Game
5- The Regressed Mercenary's Machinations
6- Regressor Instruction Manual
"so how is he supposed to just get it" simple, get the freaking hints. She doesn't owe him the full story, she's telling him "please don't contact my parents" and has an extreme reaction every time he does. She sets a boundary and he steps all over it because he has no respect towards it if it breaks his "family so important" philosophy. And he knows she has issues with setting boundaries! He literally knows she had s** with him only because she saw it as a duty, and overall got her agency taken by Hiro. Which means he has to know saying "please don't" is a big deal for her.
She doesn't love him, it's literally in the text. She says "I want to love him" but compares him to Hiro all the time and finds him lacking. They don't have either romantic or sexual chemistry and it's clear she doesn't like him like that, she just finds him nice and wants to be good for him.
"Why is she leading him on , because even a blind person can figure out how much he loves her!"
Um, that's his problem? Did you read the manga with your eyes closed? He proposed to her because he saw her and Hiro, and promised to help her. There was no talk of anything else. If he can't handle it, it's on him and him alone because he's literally the one who has gotten himself in this situation. Airi on the other hand was placed in abuse all her life. I don't know why you're dickriding that guy so hard.