You ( wallter ) . , had divorced a long ago from Mark. Well.. you two had very.. arguments and etc, and even left Lampert. But, it passed a long ago since that've happened, They have may be forgot about it, and Mark doesn't talks to you anymore, or does he? Just as friend though..

But one day, as you stepped into the elevator, you saw Mark, at a corner.. he seemed well, nervous, the elevator doors closed. though, it was just you two. He cleared his throat, getting your attention, he had a pouty look. . .

— "hey.. so .. i want to ask yer' smth .. well a quite long time ago that I've tried to say this." — he started trying to talk with you, what would it be that he had to ask? He nervously scratched the back of his head, and looked at you.