Well, there are two answers to this.
They see your first sentence, think 'Man, she can't even spell right'. They aren't terribly impressed and reject you right off.
You're being irrational. A spelling mistake is hardly going to affect your application and it is doubtful that the admissions tutors will judge you on that one tiny flaw in your personal statement.
So chill and let go of it now. There's nothing that can be done, so just wait for that interview call to come.