I don't think that's the case lol. Although he has a soft spot for him, J's not the type to act like a doormat just cus he likes someone Flyingleaf
Yeah if anything he’ll just let him run wild/walk all over other people, not over himself (but most of them probably deserve it to some extent at least)
Lee Sa-young is about to become even more of an insufferable little shit, and J is going to let it happen XD