If she found me and approached me, asking, demanding, I wouldn’t deny it.
I would say:
Sister, you are right. I have wronged you.
Sister, you deserve the truth.
I have been eating bread out of your mouth. I have been stealing from you in a hundred different currencies– in labor-time, attention, emotion, kisses, sweat. He’s your man. All of his resources belong, rightly, to you.
You deserved none of the harm that I’ve done you. Sister, you are blameless.
If she stuck around long enough to hear it, I would tell her: of course he does not love me. You are the only woman he has ever loved.
And if she were looking for specifics, wanted to know how I came upon her man, I would tell her: see the latest indictment of a sitting member of the US House of Representatives for the web address.
Soon she’d have her fill of confirmation. Ready to take her leave of me, she’d wipe the filth of me forever from her hands, and I would tell her:
I am gone from your house, now. This, here, between you and me, is the final exchange.
If she found me, I would swallow back everything I wouldn’t say. I’d withhold some of the finer points, like:
I am gone, but there will be another to replace me. He’ll apologize, he’ll weep, he’ll immolate himself before your feet, promising to change. He might even take a month or two away from seeking. He may truly want to be, for you, a better man.
Did I mention that he loves you? He loves you. He does not relish hurting you. But.
The compulsion in him will not die. I do not take it with me when I walk away.
He’ll fight against it for a while. He does want to be a better man.
But sister, he isn’t a better man.
The need in him is absolute, consuming. It will rise again to devour every other concern in its path. Why else would he have done this to you in the first place? He does not relish hurting you. He loves you.
I won’t tell her that the next girl, and the next girl, and the next won’t care a lick about him, or about her. They’ll show up for the money, and they’ll grit their teeth through every hotel encounter.
Sister, do you prefer it that way? I won’t ask.
If she ever found me, I would eat her hatred and wish her peace of mind, hoping that she’d never find out about the next girl, or the next, or the next.