So you picked one of the choices from the other thread. Now the question is do you leave each other karma knowing the jilted will probably see it?
Definitely yes
You leave Karma because of your interaction with that person and out of respect for them; not based on what others will think.
~ Sunset Snuggles
In my hypothetical case, yes. In my head I see it this way; Oh hi, cuddler A! I didn't realize that you'd be available and hadn't heard back from you so have made other plans, can we try another day? I have nothing to hide.