Yikes.

Yeah normally that'd be too extreme but also consider that this guy's job was to SLEEP WITH OTHER MEN. Any decent guy wouldn't like that much.

You shouldn't say that. I know plenty of sex workers (all genders) and I totally believe they deserve love and happiness. They also have decent partner, I'm just saying.

That's fine I'm not dissing on them good for them finding love and happiness I'm just saying it's understandable that he would be jealous that his boyfriend is a prostitute since he has a monopoly personality

I don’t know man. It’s a little off putting knowing that someone’s else’s dick is going up your boyfriends ass.

wtf??? So he should have let his boyfriend keep sleeping with other guys? ╮(￣▽￣)╭

It's not an indication of extreme jealousy, it's really normal. To most people it's PAINFUL knowing someone else is having sex with the person you love. It's probably even worse if it's multiple people nearly every day. Some people feel differently but they're in the minority. But Haruya wanted to stop working as a prostitute anyway so it doesn't really matter.

There's also the high risk of STIs with Haruya having so many different partners, and we know they exist in his manga's universe since they show condoms. Even if they use a condom every time, there would still be a small risk for Hitoe. It would also mean that if the two of them liked the idea of having sex with direct skin-to-skin contact or ejaculating inside, it would never be an option since Haruya would have a continuous risk of infection.