This a stunningly powerful game for its length. I don't have too much critique, more just notes on parts of it I enjoyed - I think thematically it does its job really well, so I don't have much to say there.
The opening with a dictionary definition was great to frame the context of the game, it might have been a confusing start without this. Generally, I think the way you varied both the hypertext usage and paragraph lengths made for a game that flowed very easily, and gave resistance in just the right places. Overall, I think you establish an inner conflict of the character quite effectively and quickly, which was impressive. The contrast between moments like the character calling herself a whore (essentially) and then saying they don't know what a whore is, paints a stark picture.
"i haven't kissed a boy but i've shown men older than my father my strechmarked bum" is such a strong line that I think you could have even ended with that single line on a page after 'he calls me boring and I smile'.
Not so much feedback as much as an idea, but the second last paragraph, that begins with 'when I climb into my cupboard'. Perhaps because so many of the sentences are short, you could make a long chain of links with short sentences. You then click through them rather quickly as a result of their shortness. The quick several clicks could contrast well with the static final paragraph where you have nothing to click. I figure it could feel like it's building up to something, and then anticlimactically just leaves you to linger in the nihilistic, yet panging, emotions of the static final paragraph. Just a thought!
Great job on this! Its really quite a startling and emotionally charged piece of interactive fiction.