With all do respect, I completely disagree with the idea that you have to hate your WS if you have the AP.
There is only one AP that I can seriously say I HATE. By hate, I mean I hope nothing but the most awful of things for her. That being said, I don't see her, think about her, talk to her, talk about her, etc... She is not part of my life anymore. She is the woman who my daughter's dad (one of the women) that he slept with. The reasons I hate her and not the others I can go into on a later date, but suffice to say that I have absolutely zero empathy for this individual. I don't even consider her a human being as a matter of fact.
Why am I allowed to feel this way about her, while I have forgiven my daughter's dad and actually have a fairly pleasant relationship with him? Well it's simple:
1) he was sorry. He showed remorse for his actions and apologized to me. She did no such thing.
2) I know him as a person without the cheating element. I had a relationship with him before he cheated. I have a relationship (not together, but a co-parenting relationship) with him well after the cheating. To me, he is more than just a cheater, because I have seen him in other contexts. I have never had an experience with this woman in a different context. I'm sure that to other people, she is a daughter, a sister, a friend, whatever. But to me, she is ONLY a cheater. She is ONLY a woman who participated in the destruction of my family and then went a step further and harassed me and threatened to kill me and my child to the point where I had to get a restraining order. She could be a nun now, I don't care. That is the ONLY context and light I will ever see her in.
3) I am allowed to hate her. I am certainly allowed to hate my ex as well, for doing the same thing, but that is more difficult. I HAVE to have a relationship with him to raise our daughter. I HAVE to see him every other weekend. When my daughter graduates high school? He will be there. When she is getting married? He will be there. When my first grandchild is born? He will be sitting with me in the waiting room. I can hate him, but then I have to forever have this horrible person who I hate in my life. Or I can choose to move on, and not hate him.
Her? I can hate her all I want. We don't live in the same town and I have a restraining order. She literally cannot come within 500 feet of me or my child ever. Can I hate her? Sure. I can do whatever the heck I want, and it fine as long as that hate doesn't consume me. And it doesn't. For the most part, it sits in the background and doesn't cross my mind.
4) this is a further based on reason number three- it is easier to hate her and blame her than to blame him. And I say this- feel, do, think, and say WHATEVER YOU NEED TO TO DO in order to make your healing process and your life easier for you. For me, blaming her for more, even though logically that is unreasonable is easier. And you know what? That is okay.
Who in the world cares about the double standard? I certainly don't. If you want to hate your WS more, fine. If you want to be hypocritical at the expense of the trashy whore (what is the male equivalent to this?) OP, go for it.
Hate, and anger, are both normal emotions. The only thing you "shouldn't" do is stuff them. Hate on the OP all day long, I will help, if it helps you feel better.