Dramaqueen - I do not consider your question rude; it is a logical question in my opinion.
The fish was a gift to the wife from students and I don't think she really wants it but the husband has grown attached to him and I believe he truly wants the fish. I just think he hasn't had the time to deal with learning about fish care and/or he was planning their awesome vacation and that took up all his time & thought process.
Actually I don't think he knew anything was wrong with the care he was giving the fish until I pointed out the square plastic tank was too small. They left on vacation the day after dropping off the fish, so they have no idea how much research I've been doing about this little fish! They will be surprised I'm sure.
As I mentioned, I want to keep the little guy; he's a beautiful blueish/turquoise with a touch of red/burgundy at the bottom of the lowest part of his tail; I haven't researched on how to tell what type of betta he is yet, and until I came on this forum, I never saw one like him. If I can get a picture of him, I'll post it. As much as I would like to keep him, I know I can't as I'm pretty sure the husband wants him back. Then I'll just have to go buy my own.