Just been catching up on your sitch. Great news about the house! I'm so pleased for you and your girls.
Sad to read about the facebook incident - how heart wrenching! Another act of selfishness by your STBXW - putting all that out there for the world, including your daughters, to see. I will never understand as long as I live how a parent just ceases to think about their own children.
Your plans for your daughters 16th sound wonderful! You are such a loving, thoughtful Dad. I hope that if STBXW's head does pop up for the event she doesn't ruin your daughter's celebration.