Quote: please advise...I'm wondering if I married a monster.
She is NOT a monster, she's just not someone you recognize at this very moment. She's your W and underneath it all (despite what you are seeing), she still is the kind loving woman you fell in love with and married. She's just as you said at a crossroad in life. A great deal of which fork in the road she takes, will depend on you and how you handle YOURSELF. That was one of the reasons that I suggested you read the Mars/Venus book. There is such a wealth of information on what men/women need/want in relationships.
Honestly now Vince, anytime she is spending time with om that is taking time away from you...is not going over the top. Is it not? Perhaps it just so happens, that they had that night picked out in particular. You never know...that's why I suggested if you can, stop analyzing it. I know it is hard to do. I know how you are feeling. There could be a thousand reasons of why she did it and chose that night...find something else to do to take your mind off of it. Come find one of our silly martini posts and have a laugh...seriously, it's done most of us a ton of good just to make new friends on here and have a slight diversion.