We have a 15 month old V who suffers from severe separation anxiety. We recently got her a playmate thinking this would help. Its has help and its also caused some new behavior issues. Abby is now throwing tantrums. I will give her and her sister, Chloe each the same treat. After about 5 minutes or so, Abby begins to cry for Chloe's treat, barks, pulls on the blankets, paws at Chloe or all together takes her treat from her. This is only done with treats, not food or water or being protective of her bed. Also, for some reason today Abby decided to pee right in the middle of our bed. I don't know if this is an act of resentment or what. But she has never done this in the past. Chloe has been with us for a month now and I have tried to make Abby feel as much as possible that she is still our #1 baby. Any words of advise or wisdom in dealing with a jealous V and her sister's treats?