I don't know if I see it as casual. She seems pretty stressed out in her emails.
Like a teenage girl rebelling after being grounded by her parents. That I can relate to!
I was grounded a lot, lol. And I rebelled a lot.

WW is rewriting in HER head, her M to you.

She believes that these times are sooooo hard,
she was justified in allowing another man to meet her needs,
and how dare you disturb that,
and embarrass her for simply looking for happiness. blahblahblah ......

Don't let it get to you, it will throw you off your game,
and you are doing what you can, the best way you can,
considering your circumstances with being so far away from each other.

M'd 22 years
BW-me
D-Day 08/08 LTA