And about Justy being absolutely repulsed, well, I decided to make his personality different. He doesn't have a choice because, he's a celebrity, and his manager kind of forced him to love.
The nurse didn't ask how Anna felt because the nurse was being like.....a um...whats that word...*****. And, she didn't exactly care for how she felt.
As mentioned above, your fic could use more 'explanation' within the story - these sort of facts should be a part of the fic instead of being outside it. The reason for that is although the reason might be obvious to you the writer, it will not necessarily be obvious to the reader. This can make it seem that the story is not thought out well and/or has plotholes and so forth.
Another good reason to include the such is because it simply adds more to the story, and allows you to make it more interesting - you can include more details during such bits such as how the characters do what they do or what they are like themselves.
Anyway, I do agree with what has been said by other people so far. The nurse only asking about her 'dream' didn't strike me as realistic for instance, and Dragonite Ernston has two particularly valid points - one being to avoid working on too many stories at once, and for that matter don't try to post them all at once either - it can risk it seeming just plain odd from you for many, and you risk many being of lower quality than what they have the potential to achieve. Take the time to work on one, maybe two or three at the very most at once, and to proof-read and edit your story before posting. Use spell-and-grammar checks as well as a number of your mistakes are just simple spelling or grammatical errors which would be picked up by such a check, and although they are not that important they do have a significant impact - they can make the story look unprofessional and/or not as good as it could be, and it can also distract the reader from the story itself.
The other point mentioned is the one I also mentioned quickly when I close one of your threads - space out the story! Stuff is generally harder on the eyes on a computer screen as opposed to a book, so if you don't use any line spacing between each new paragraph or different speaker's dialogue, it can put off readers and just be generally irritating.
A few additional points:
[Anna Summer's POV]
I suggest against this in general - instead try to aim to have it within the story itself, things like whose POV this story is coming from instead of bluntly announcing it. Sometimes it can work but I feel here it would be better if it was part of the story (e.g. someone greeting the person with 'Mr Beiber', etc).
"H-hi, I'm Anna summers," She said quietly.
You didn't do this often at all (which is good seeing this is a common mistake many people make/have made I've noticed, including by yours truly =p) but note here as the part following the dialogue is one sentence with the dialogue as opposed to one sentence by itself (as it is talking about who said that and how), you should treat it as such and hence use a small 's' in She as 'she' is not a proper noun nor the beginning of a new sentence there.
"Hello," I said, my voice was faking to be happy
,I laughed fakely.
I smiled fakely still.
Also note that sometimes your were too repetitive with your writing - three times here you used the term 'fakely' or similar variations - try alternative words instead for a couple of those.
I'm surprised the dumb dimwit didn't know. I sat next to her. She blushed. Why would this nitwit be blushing? I'm just a famous singer..
"H-hi, I'm Anna summers," she said quietly. Okay, now I was annoyed. Was there a problem with her voice, or was she just retarted? Why was she acting so shy and quiet around me?
I disagree with Bieber's thought processes here as well - after all, thinking about it, he is a famous singer known to be hugely popular to young girls (teens and 'tweens' I guess) - it's hardly surprising that this girl is nervous and blushing over the fact that a celebrity that she has a crush on is talking to her, and I would think given the screaming mobs of fans bieber has (and given that, what I felt was a neat feature of your story is that Bieber actually had mob crushes at one of his (cancelled) concerts would make it pretty obvious to him why she's reacting that way. (Unless you're playing him as a rather thick sort of character here I guess?) Also, retarded over retarted.
"Well, I gotta go now. See ya Anna,"
As an additional note, consider adding a comma before 'Anna' there as he is talking to her by name/nickname/insulting name/etc (e.g. 'Fetch the ball, dog' 'Hello, darling' 'I hate you, fiend!').
There's some potential if you edit at this, certainly - just needs some time and effort, and less focus on multiple stories and more focus on one or two at a time. Good luck with your stories at any rate.