She should absolutely be focused on finding the evidence to categorically determine if Caoimhe was or wasn't the culprit.
That was undeniably the most important and pressing matter she could possibly be thinking of right now.
She should definitely be planning on what to do after making that decision - how to confront and handle Caoimhe, or how to lick her wounds and find the actual culprit with what little time she had.
Because if it wasn't Caoimhe she'd basically wasted most of what precious little time she had doing nothing except maybe buying a little extra time and ending up where she'd started, including in the sense of having no information.
Really, she should be doing way more productive things with her time.
There were all sorts of things piled up to do.
Like eating. And petting Snowball. And talking with her husbands as she prepared for Caleb to arrive again.
But instead.
Instead of those many useful things she was doing.