You have to keep trying to. DO NOT PURSUE her at all anymore. You keep falling back to statements like this all the time:
Why don't I just go to her and say "You say you're worried I'll never get past what happened, yet you're keeping OM on your FB page. How am I supposed to let it go when you can't? Is keeping him on your FB page worth destroying our chances at reconciliation and us not going to Disney together as a family? Is this really what you want?"
You have to stop this kind of thinking completely. Let her go. Forget about it until she comes back to you. How many years do you want to drag this out?
Sorry if I am being an ass, but you have been through this so many times before. STOP!