SG keep an eye open and monitor her from afar like you have been doing. I'm like you in that I have no gut feeling there's an OM but I would also say it's not impossible.

Eric has given you some excellent advice. As far as talking to her tonight if you aren't ready then you have to tell her you aren't ready. I'm sure you are emotionally exhausted right now. Do your best to shrug off when she is mad and don't always assume it's about you. It does you no good to walk around on eggshells. Do not let her mood dictate your mood. If she isn't happy that is her problem not yours. She is responsible for her own happiness just like you are responsible for your own.

The best advice I can give is for you to detach ASAP. The sooner you do that the better off you will be.

M 44 W 43
S 23 S 15
INILWY 9/11
Divorce Mediation started 3/13
June 30 the day W is moving out