"Oh no, woe is me! All the boys give me attention and I'm popular with them!"
Oh yeah, sure, totally believable. A girl is definitely going to be upset about getting attention.
<cough>BULLSHIT!<cough>
In all seriousness, her weak-mindedness is going to badly harm her life. Not just the breast thing, but why she wants the smaller. This is not a person who can handle life at all if simply boys liking her chest in school is enough to cause her to want someone to both get intimate with her to change them and to alter her body. Imagine how she'd be in a college or in a job. This girl can barely handle not being locked in her house.
She doesn't need someone groping her tits and changing them. She needs a psychiatrist.