Would you really want the rapist who tried to rape your partner lingering around at your partner’s work?
(spoiler!!)
I’m pretty sure Jiwoon is trying to get rid of the red head before sending Suha back to his work, the red head is involved mainly in the crime of the company and Jiwoon does not want Suha to be involved in it/ be threatened/blackmailed by Red head again.
No I wouldn’t, But locking someone in a house because of how you feel is very selfish like at least give him a little freedom, but after all he’s keeping it a secret from suha from the bad things he’s doing too. He’s a liar other than that, that is very childish behavior and he needs to do better that’s all.
We all know locking someone isn’t right. At least he’s not tying Suha up even inside the house, unlike some BLs . It’s not just about how he feels, it’s about the incident that caused this shit.
Jiwoon isn’t doing bad things aside from locking Suha up out of overprotection, (spoiler)
Jiwoon didn’t want Suha to go to work since the red head is there. Jiwoon (spoiler) is trying to find evidences against the red head so the red head can be gotten rid of. Then after red head is gone, Jiwoon will be more at ease.
I think it’s a normal reaction to be worried because remember, Red head blackmailed Suha, threatened, had two men nearly rape Jiwoon, drugged Jiwoon, company embezzlement, etc.
Oh and Suha knows something is up with the company so it isn’t hidden from Suha anymore. He wants to help Jiwoon.
Jiwoon has stated he doesn’t care for the company, he’s doing it for Suha. So Suha can work in peace when going back.

I’m starting to hate Director park he’s being so selfish:<