I am all for busting up a rendezvous... but sending her a text message on the WAY to WARN HER?

Everyone needs to stop this instinctive reaction to TALK to their addict spouse before they do something.. its NOT HELPING

Don't talk for compliance.. they are cheating!

You act to show consequence... not threaten... just DO IT.

If your wife sneaks out to meet OM
You meet them and make scene and ruin it

NO talk in there at all... She acts, YOU respond

She will realize you wont' tolerate her crap if you DONT TOLERATE HER CRAP