
just my guess.. maybe as a payment for saving lee sun's dad, he said something like i'll do whatever you want and because we all know yoo min likes him and wants to date him he agreed
oorr maybee because he knew yoo min likes him and she is his family's benefactor, he dated her even though he doesn't like her, pretended to love her and made her feel special maybe that's why when they broke up she was hurt that all those years together and he don't actual love her (my poor yoo min) ╥﹏╥
can't wait for the next chapter to find out chich one is close to the right answer (=・ω・=)
THANK GOD HE'S DEAD!!!?!!
FR, THANK GOD!!!