Answer:
Stacy may be considered to have narcissistic personality disorder
Explanation:
This personality disorder is described as a group of signs and behaviors a person have, that express the need of attention, and is constantly trying to get it.
This is problematic because people with this disorder have difficuties stablishing relations with others, as they are not always able to understand other people's necessities. They are constantlly putting their wishes and needs before others, without furder considerations. This can lead to selfish conducts such as Stacey's.