You may have slept with older women, but we're taking about a married family member who's 8 years older than you here. I really doubt she wants the cock. Perhaps this is how her motherly personality displays itself
But you know how to find out Willco. Respond again with some comments like "i can't wait to see you I love you so much. I've had a tough year but you always make me feel better" or some shit. Get her talking more, see where it goes.