Take the words right out of my mouth

In school, we had to write resumes for our 250 hours of work placement. Of course, I wrote what I thought was a phenomenal resume, after all I did already go to Conestoga College for two years. I did already study resume writing for four months and excel in copy writing during those same months. Plus when it came to English classes in high school everything just fell into place naturally. I never struggled with writing or reading. I guess I am like my mother that way.
I wrote a beautiful objective filled with all the cliche things that employers love to hear except with my own twist to it. I wrote a very captivating cover letter explaining my current position as a student and after perfecting it I sent it to my placement coordinator. I received an email from her today saying that my resume and cover letter was great she just had to make a minor adjustment to my skills list on my resume. Well curiosity killed me and I opened the attached documents. She rewrote my entire resume and cover letters. There were a few tidbits left of what I had wrote and that was all. I am not pleased to say the least. I don't understand why she would send me an email telling me how perfect my resume and cover letters were and then rewrite the entire thing. It doesn't make sense to me at all. I am upset because I worked really hard on my resume and I actually know what I am doing. I know how to catch an employer's eye, I know what to say and how to say it. I think I need to ask my placement coordinator what I did wrong or what she didn't like and ask her why. If I did do something wrong or make an error somewhere that's fine, I'm glad she caught it but why did she change the whole thing? The wording is not mine, it's not even close to how I write when it comes to professional documents. And I think if I went to an interview tomorrow with this cover letter it would be quite obvious that it is not my writing or speaking style. I just don't think it was necessary and I am determined to get to the bottom of this issue. I know that I am very weird about my writing and that there was not one single grammar or spelling or any other type of mistake that she could catch. I reread the entire thing multiple times and I had peers evaluate it for errors as well. So I need to know why and until I do I will obsess over it and drive myself mad. That is my nature.