The ex

This morning I logged onto my hotmail account to see that my ex had left a comment for a picture of me on my myspace account. We have not talked since September and the parting was not a happy mutual one, so why would he bother talking now? He's still with Mandy as far as I know and I am no longer interested in being his friend. I'm just pissed that he's on my mind now. Why would he bother?