Aly,
Hold on. This is going to be the hardest day for you, but you must let go. It is for the greater good that you let him go. He will always remember you for the love and kindness you've shown him. Be strong. You have no other choice. It is fate that brings him to a new home. I'm sure he'll love it there. Your job is almost over. You've done the right thing even though it cost a piece of your heart. My thoughts are with you.
Sue