Okay - I promise this is the last dog post for a while. Mollie did not have a UTI, bladder infection, female problems, or crystals in her urine. Nope. Behavioral. As bummed as I was, it's good that she's healthy. Physically.
She has just been really pissed off. Literally. Keep crating her during the day. Shut her in your room at night. Walk her every day. Lots of praise and attention. No little pill to fix it.
We have had success since we found the problem though, by crating her and shutting her in our room at night. No new pee pee.
So that is the end of our sad little tail. Pun intended. It is now up to us to put 'keeping the dog happy' on our daily to do list.