Anonymous wrote:"So after nearly 20 years of this, they apparently became intimate again this year. It was short lived because my dad refuses to divorce and my mom refuses to sneak around."
Yes, it's hard to face that your father is a cheater and your mother was his whore.
Wow, you're even more crass than greasy butt crack sprinkled with cornstarch.
I'm sorry OP, it's sound very crazy and high drama. Any way you can try and stay out of this? It sounds stressful and maybe you should try and step back from having an active relationship with them. And if your siblings call or anyone calls and wants to discuss - gently change the topic to avoid the toxicness of the situation. Doesn't sound like much has changed over the years so there's no need to keep on top of the situation.