21 years of marriage hanging by a thread

[Chuck66]

She has worked 7 days in a row and tells me she will work late again tonight (for me to go pick up our kids) and will be busy all week. She worked 60+ hours last week too.

She told a co-worker that she is working only an hour or so tomorrow and then taking the whole day off. She never told me that.

Friends think I should either directly confront her tonight or see what she is up to tomorrow. I have IC at 11 am tomorrow so can't follow her around all day. Either way is not detaching, but I have never found any proof or EA or PA either? She doesn't use her cell phone. Most of the time it's off. Recorder in car and call logs wont work (has Tracfone anyway) Her minutes are not going down. She only uses her laptop at home for legit sites. Her virus scan at work picked up my key-logger and have been unsuccessful there.

Cousin offered use of his vehicle if I need it tomorrow. What should I do?