
I can't remember... did prince Jedi sleep with someone else?

No. Nicol's sister tried to get him to sleep with her so she could pass off her lovers baby as his, but he has a strong resistance to poisons and refused her.
Normally I'd think he'd have had experience before Nicol because this setting usually means sex is a coming of age thing (and he's a lot older than Nicol). But he said he wasn't desperate to become a man and his reputation was as someone who didn't care for women. So he doesn't seem to have any experience other than Nicol.

I'm so glad this is how it went... I don't think she handled that well either. Also... inviting the dude you cheated on along with the dude you cheated on him with to your wedding to see your supposed best moment in life.. she didn't think to much about that. And he's having to deal with the dude who has an obsession with him.. like this dudes never gonna catch a break.

I don't understand this Manhwa anymore(I do but it's more of a state of 'why?')... they started off bad... they were still bad and it still seems bad... Hyesung masturbating and using a dido and Dojin comes along with his big dick energy and now he's crying? I wonder what's gonna be the explanation in next chapter on why he's crying.
I hope he does it was the dark haired one because I'm sorry... the blonde one is a little annoying. You say you like him but you sleep with other girls. Like come on bruh? This is not real so don't take my comment to heart.