Welcome Bez,
We went through a similar thing after our child was molested by a fellow JW and we stopped attending meetings. It was really hard at first trying to explain to the kids why they were not being invited over to their friends homes anymore or why their friends stopped coming over our house. After all it's not the fault of their friends.. it's the control of an ORG on their parents. If you don't go to meeting, no matter why..you are not considered good association and therefore your unworthy in their eyes!
It took awhile for us to start over again but what helped us was putting the kids in sports, music.. really anything that allowed them to meet new kids. Eventually they started making new friends and even started attending birthday parties. They love their lives now and they hardly mention their old friends.
We are getting back to being Happy and you will too...
Just give it some time.