After having read all of the previous replies, I guess I'm torn.
I would like to think she would greatly appreciate your thoughtfulness. But I too have seen people that manipulate others until they respond, then get hurt from the reactions.
I do like the thought of maybe a pillow...pieced on one side and fleece on the other. I'd put a label on it, telling her of the love you have for her. I'd also put a note on it, that when she reaches out to you, you have a matching quilt in her future if she would like to have one...or something to that effect.
Then go ahead and make the quilt top...hold until you hear from her or save it awhile and then donate it to a shelter for women.
I'm rambling, but this is a very hard and personal decision. Go with whats in your heart...you'll never regret that part of your decision.