Her delaying, and talking about "I think about it" is saying to you that she feels she has all the cards. That you want her and she knows it, but she's "evaluating" the decision...
She's cake eating like a greasy pig.
He probably should have said "Don't bother, its OK wont be necessary". She does not expect this, and her ego may hear that response as getting combative, when WE all know it makes complete perfect sense.
