... any premise in my message that "Frederick came to Kellynch purposely to see if he could "resurrect" anything with Anne"; I simply speculated that "maybe he's even anxious to see whether there might be anything to resurrect between them."

I think there are plenty of times at Uppercross when they misunderstood each other, but I don't buy the idea that they were looking for an opportunity to get back together. I think they were both trying to protect themselves - both from remembering past pains and avoiding present ones.

If by not "looking for an opportunity" you mean they weren't deliberately working toward such a goal, we agree. If you mean that neither wanted a reconciliation, the text disagrees strongly with your premise with regard to Anne, and (I think) subtly implies disagreement with regard to Frederick.