So when will she think about it?
Talking about it is right out. It was something hushed up for fear of scandal, so most people don't know about -- I'm not even certain that both her sisters do -- and those who know won't talk. Both to keep it hushed up, and because it was less important for them than for her, so they do not have it brought so strongly to mind.
So, she has to think it. The big issue is that she has to think it when the readers are sufficiently interested in order to follow it.