SM, if you react outwardly in a negative way towards your W due to this "revelation" that you became aware of, then it will show her that your "changes" are a ploy to win her back...
As tough as it is (and I know it is tough, I still live it), here's the thing...
YOU DO NOT have your W's heart, right now...
Your M is already dead...
Now... if your BOUNDARY is to not be involved with someone who is not exclusive with you... or someone who is "playing the field"... then walk...
You do not need to instruct her why... it is not the words, it is the actions...
And if she looks your way... if she questions your behaviour... then she can decide what she wants...
IF you had expectations... then it will show in your next actions...
If you had NO expectations... then you can keep moving forward...
