LoH isn’t about moving on, or a new love “saving” the main character. using an unreliable narrator, shifting perspectives and hiding parts of scenes, yd set up many expectations in the first 2 seasons only to break them all down again, making us look beyond the surface.
haesoo has been completely, devastatingly in love with joowon for 10 years. joowon never left his heart or his mind, not for a moment. a rebound wasn’t ever going to change that.