My advice would be to sit on this for a little while. It is V Day, and your W was out late last night, so you feel pretty raw. It's always best to let any big moves settle with you before you make them. I think you would be doing this in 'reaction' to your upset with W.
You may find that writing it out itself makes you feel somewhat better. I have had times when I drafted an email and have saved it, but never sent it to H.
If you do decide to do this, I don't think any of the 'evidence' is going to sway your W. Why? Because no amount of reasoning or evidence is going to influence a WAS who is working purely on emotion....literally drugged with that emotion.
If you do decide to do this, you may want to consider simple, short and face to face. But definitely let it all settle within yourself for a little bit before you do anything.
T 13 M 7 Me 48 H 46 SS 15 BD 7.14 PA D final 5.16 (H filed)
We receive & we lose, and must try to achieve gratitude & embrace with whole hearts whatever of life that remains after the losses - Dubus