I think this is a prime example of Stevie using the same word or phrase to mean to diff. things. The first time she says "get away" I think she means anytime he can get away to be with her in secret. Then, when she repeats it, she could be talking to herself saying AM I crazy, i have to get away from from this crazy situation.
Oh that vague Stevie's gettin' us a thinkin' once again!
