Dear Dr. Sandy,
To explain the reason I'm being thorough about my marks is because to enter the grad program I want to next year, I need a 3.60 GPA [of course you do]. To do so, I have to get straight A's in all my classes [yup]. I'm kicking my self for being so close, but missing the mark in your class. Literally, almost there [not really].
I guess I'm just disappointed in myself for messing up [but I want you to give me a higher grade anyway]. I would truly love the chance to go over the final or do whatever would help [not contacting me again would help].