Questions about Kirishima Miyami

So I basically want to understand why he did or does the things he does, and what are his motivations and reasons for the things he does.

Q: Why does Kirishima Miyami tell Yoshino to become something useful to him and sell her body to get him money? We find out later on that he's been curious about her since he was young, and that Yoshino's grandfather asked him to protect her for a year (the main reason for the engagement), so why did he say the things he said at that time?

Q: How can he be so nonchalant about telling Yoshino to sell her body, right after beating up the thugs who were trying to assault her, and threatening them cause they touched his 'Woman'?

Q: How does he do a complete 180 when he sees Yoshino's anger and determination and says he loves her, and now hates the very idea of anyone touching her?

Q: Why is it that he is fine with sleeping with other girls, when he says he loves Yoshino? Whats his main reason for sleeping with other girls?

Q: If it's normal for him to sleep with others even if he loves someone, then why does he hate it if Yoshino were to date or sleep with someone else? (when he explains to her that he would kill that person if it happened). Why is he being hypocritical? If he doesn't want Yoshino to sleep with others, then why can't he understand that he shouldn't either if he wants her to like him?

Also I know he's technically not cheating on Yoshino because the engagement itself is just a cover up in order to protect Yoshino for 1 year, and Yoshino herself is not in an 'Official' relationship with Kirishima and has explicitly said that she doesn't love him and doesn't care if he sleeps around. But I just want to understand how Kirishima thinks he loves Yoshino, but also thinks it's fine if he sleeps around even if he does love her.