Facebook is commonly a 'passing fancy' for many, adding a bunch of information and photos at once then maybe or maybe not continuing to do so.
My only caution to you is to note that "WALL" postings are public to your network of friends and is not a private message to an individual as many have believed.
Also, given the OM, you would not likely have been invited to be a friend with your x-W if OM had such an account.
Finally, it is an easy habit to frequently 'check' on people you have a hightened interest in to see what comments they've made, what friends they have, and what photos they've posted. Be careful not to create a negative habit in checking... it doesn't serve you well.
H40 (me) W34 (WAW) S6 T11 M10
Feb09: Need a break bomb Mar09: I moved to apartment to GAL, PMA, NMMNG Apr09: WAW 'dating' OM at work, positive around me lately.