Do you have a mutual friend who could check in on her? You wouldn't need to give full details, and you could even ask that if everything is ok, you don't need to be told. This keeps you in the dark and detached unless absolutely necessary.
Me 43 W 38 M 5 T 7 SD20 S15, S13 with 1st W ILYBNILWY June 2010 Separation/Bomb July 2010 Divorce Feb 8, 2011