Chloe was doing so well. No accidents and standing by the door, barking when she had to go. Now she has taken to peeing on the couch and this morning she peed on my arm/in bed! If something is left within her reach(granted that's our fault) she has gone from playing with or lying on it (ie shirts) to destroying it. She is a super sweet little 5 pound dog so I have no idea where this is coming from. Any ideas?