I agree.
It's already too late, op you have disrespected your wife, dragged her into a conversation that no wife should ever have to have.
Once ultimations have entered the conversation you have already been disloyal, you have lessened your wife's importance.
Can you not see how this is humiliating for her, maybe not to others yet but between the two of you, you have drawn her into a painful triangle and expecting her to play the pick me dance.
Once a pick me dance has started it's over, even if your 'friend' dissapeared tommorow, your wife will not forget this, it has scarred your marriage.
The usual taking things away from you will ensue, she will stop caring and looking after you, sex maybe pulled, she will withdraw and no longer trust you to have her back, you are becoming a stranger to her.
Your post, if real shows how utterly deluded you are and also how cruel you are.
Stop lying to her, and yourself.
She's in pain and you are sadistic for watching it.
You are refusing to admit you are causing her pain and that's unforgivable.
It's already too late now, you are only trying to explain your mistake.
Nothing will be the same again.