I don't necessarily disagree with you, but I do think you should give it some internal, set amount of time in YOUR mind. 3 months perhaps?
Some do six, others a year or even two; I personally could have NEVER abided that long. I chose three, and told my wife only that "I hope you'll hurry up and do the right thing, because what's left of my love for you is running out every day you carry on this affair and lie to me and everyone else about it."
I'm sorry about her aunt; it doesn't surprise me. There's a reason why "Blood is thicker than water" has become a phrase in our popular lexicon.
