Responses

It’s the guilt of treating him like garbage vs the affection and love he feels that he doesn’t deserve to have for Sejin
Of course this is all by his design bc he feels that Sejin deserves a fresh start (hence the whole fiasco in s2) but you’ll see moments here and there where his possessiveness and inscrutable nature jumps out lol. He actually speaks about it later on and says how he was trying to walk a fine line of respectability and guilt.
Tbh I’m surprised about how the ML still treats him in the present timeline. He has moments of indifference, coldness, and aloof, but then he acts like a good person getting him what he needs, helping him sleep etc. I feel bad for the MC. He’s just pushed around by everyone.