Her mother encourages her to donate to charity, which she appears to do fairly regularly.
This made Vanessa mad, so she started remarking on his father, Major Monogram, instead.
Candace and Vanessa fought over a Mary McGuffin doll in the charity store.
Although not stated on-screen, she could very well be considered Vanessa's version of Candace's friend , based on how Vanessa talked with her that day.
After a search that took years, her father gives her a doll that she had wanted when she was seven.
Gallery View the image for Vanessa Doofenshmirtz.