From what I can see, the ML has some issues with being possessive. Idk what the reason is but he just can't fully trus the MC. I think he lacks confidence that the MC can truly stay in love with him or something.
The MC on the other hand is trying his best to accommodate the ML but has some issues with ML's actions then the ML is kinda gaslighting him into doing what he wants so it looks like the MC is acting wish washy but the truth is he doesnt know if he should stick with what he feels is wrong or give in with what the ML wants. Not going as far as being in an abusive relationship but its the same feel when a person is stuck with that kind of thing.