Aww, i'm so sorry. :(
He was a pretty fish, that would be so frustrating if that happened to me too.
I didn't nearly loose so much money, but I bought a couple of shrimp once and named them (I get attached easily), but they ended up dying in 2 days from health problems...I still miss them a little!
Is there any way you could get your money back?
I guess that wouldn't change the fact that you lost your betta though...
I'm glad you still have your female, on a little bit of a happier note.
"Life is an adventure full of beautiful things, and a treasure worth more than gold."