Late to the game-2

[rich4j]

Free

Feel for ya as I am in a similar sitch but not with her having an A
(as far as i could uncover that is)

If your L is giving you that advice, I would stick with it

For me, it would be so hard to keep that under wraps.

But even harder would be to want to reconcile as I think it would build alot of anger and resentment for not coming clean.

I struggle now with anger/resentment as I am past the repair stage but can't imagine what you are going thru in the same house with her hiding this.

I do like your lawyers suggestion :-)