In "Locked Up!", Beck mentioned that his aunt had invited him to her house in Cancun for spring break only to rescind the invitation when she learnt that he was planning to bring Jade, suggesting that she, like the rest of Beck's family, doesn't care for Jade.
In "Opposite Date", Beck and Tori take Buster to the animal hospital on his aunt's behalf though it is unclear if this is the same aunt who has the house in Cancun or if it may be a different aunt.