first I will agree I wouldn't want to see any of my ex's fathers in a movie like that. Time is a big thing with getting over a relationship. I'm supposing it ended well since you are still friends. Going on with your life hanging with other friends may be beneficial. Try not to hate on her current if you act all jealous and she sees that you may never have an opportunity to get back together. Who knows how long her current will last. Keep your options open so you don't miss out on anything. Who knows you may meet someone else that is another good match. Otherwise just be a good friend. even if you two never get back together you will always have a good friend and they are precious.