That little girl is mean! It is probably a great things that your girls want to end their association with her. It is probably a learned behavior, but a dangerous thing to judge people based upon appearance and diet.
On the other hand, good for you making positive changes that can/will affect the rest of your life. It will be wonderful for you to have the extra energy to chase your children. Don't obsess about the numbers, but instead concentrate on how great you will feel. I have only been primal for 3 weeks, but am very happy to see my waist again. Keep up the good work Papa. You make us parents proud!