Ok so i'm justing stating this based on what we have seen so far and there could more to it, but it seems like there was no relationship to begin with! SY started liking Jeha during the filming process and Jeha didn't really reciprocate her feelings. She got married, got divorced and now back to see Jeha again but i don't get her jealousy. He never liked her that way maybe? Jeha even Harshly told her a few times that it's over between them and he is not her lover. BUT, Jeha also did mention a few times that SY taught her something he didn't know so maybe there was love. maybe he did love her but for the sake of reputation and filming ( the same reasons he mentioned to Daeum) he didn't let himself feel, but i still don't get why SY is so hinged and obsessed with Jeha.I hope she doesn't hurt Daeum because of this.
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She got married, got divorced and now back to see Jeha again but i don't get her jealousy. He never liked her that way maybe?
Jeha even Harshly told her a few times that it's over between them and he is not her lover. BUT, Jeha also did mention a few times that SY taught her something he didn't know so maybe there was love. maybe he did love her but for the sake of reputation and filming ( the same reasons he mentioned to Daeum) he didn't let himself feel, but i still don't get why SY is so hinged and obsessed with Jeha.I hope she doesn't hurt Daeum because of this.