rehabgirl

So, I became overly anxious about my decision and emailed the grad secretary, her response basically said that she was sorry for the delay and that it usually doesn't take them until so late to make decisions...and that my potential supervisor is somewhat concerned about my marks, but feels that I would be able to work on a project that she has in mind. The grad secretary said that she hopes she can give me a definite answer tomorrow...I'm wondering if anyone thinks it's worth it to make a final plea to the potential supervisor, and if so, what the best way to go about it would be?