For the last 2 weeks or so Fafner has been about the same, with a few minor ups and downs. I decided, since he wasn't getting any worse, that unless something became very obvious and he was noticbly in distress and not trying to continue on, I was going to allow him to stay with us; he was eating like the little piggy he was and still swimming for air at the top and resting inside the caves I gave him and everything that could possibly show he was still interested in living.
Well, today he stopped eating; I offered him food 3 times, even dropping the food right next to him, and he wouldn't touch it. So, unfortunatly, Fafner is no longer with us; as it was obvious he wasn't comfortable, I've helped him to pass on.
I want to thank everyone who was kind enough to offer advice and information and walk me through so many diferent treatments and possible causes. It was far more of a help than I can express. I hope that if someone elses betta is going through something similar, they can find some useful information from this thread that will help them save their betta buddy.