He Probably did not meet her a month after he moved out is the best guess...probably knew her before and may make snese if you start thinking of what ever is the straw that broke the camels back??
Sure you can file for Divorce....but it wont stop all the stages you will go through and wnt stop the pain...there may come a point when it makes sense. Keep reading. If you have not got the Divorce Remedy get that book and also look into midlife information...at least there is alot more info out there now that there was years ago.....Divorce is hard and really not the answer if it can be avoided its worth it...at least you will know you did all you could..take care keep reading and take some time for you