Treading water - time and patience

[NYCPeter]

I have - but there is no evidence of OM.
I know none of us believe their spouse could possibly be involved with another, but I've looked very hard.
The phone is in her name so I can't check to see who she calls / texts. She swears there is no-one else (as I'm sure all WAW's imitially do).
She does come home late after work sometimes - but says she is hanging out with work friends (she finishes work around 1:00 and gets home around 4:00).
Short of hiring a PI - I'm not sure there is much else I can do.
In some respects I wish there was OM - I would know what I was up against.