Carolyn, I have been growing Episcia for years. If you can make your A.V.s bloom like crazy, I doubt if you are doing anything wrong with your Kee Wee. The only Episcia you absolutely need to keep enclosed are the pink ones. Your weather is close to mine and mine do excellent in a east, south or west window for sunlight but not in direct sunlight. They will bloom better with less stolons attached. Hope this helps. Lee Anne has given you all some great info.
Take care all