I am so surprised about how this all matches my situation. We do not have kids either. Wife filed for divorce yesterday I think. I too am struggling with how much contact to have with her. I did not show much emotion during our relationship either and it almost seems counterintuitive to not talk to her now. I cannot say whether asking her to go with you would be good or not.
ME-30 WAW-28 T-12yrs M-5yrs no kids Bomb 10/1/07 S-10/1/07