In my opinion I think, the OW stays an OW for as long as she is the person who helped split our relationship, as long as we are still married. I did not refer to the OW by her name nor by the term OW and almost never brought her up to Genius as she was not worth the air to do so.
Once I told Genius she was nothing to me. He yelled "She is a person and as such she matters in that way." Ah, yes true love.
Kidding aside, J had his OW for about 8 years on and off, mostly on. He vanished for 2 years from his wife's life and that of OW at one point . OW still tries to contact him, most recently 4 days ago. He wants nothing to do with her. Still, he laughs when Ex-wife brings her up. He loves it that it makes Ex-wife crazy still. It is only Ex-wife that keeps it alive.
When Ex-wife asked him why OW was still one of his FB friends, he looked puzzled. Then he shrugged and said, I don't know. I'm never on that and don't pay any attention to her anyway. Why? do you want me to unfriend her? (I pre-prepped Ex-wife with an answer.) She said, "No, I would not want you to hurt her or add to her pain by doing that." J almost fell off the sofa. The stick to beat Ex-wife over the head was taken from him. He has not thrown that in her face since.
if people won’t listen to you, there’s no point in talking to people. If they won’t listen, you’re just banging your head against a wall.
Sadly Ive used up all the time I had allotted to spend banging my head on the wall