Hi, little_mermaid,
1st - The bubble-blowing thing kind of has me wondering - are we actually sure that Loretta's a girl and not a plakat male assumed to be female because short-finned?
Pet stores/employees do that a lot, and vice versa as well - even when you point out the little white egg tube underneath.
Does Loretta, assuming she's not an infant, (haven't seen first post and I'm working without a brain, as usual) have a little white tube underneath, showing that she'd stand by her man, rather than flashing out of accidental drag for a brawl?
This may not matter now, but if you ever decide to set up a sorority...
I've just been reading the excellent advice you've been getting from some very knowledgeable people, and thought I'd mention that you can very often get used 10 gal. tanks very cheaply.
I've acquired several used 15's which I personally think are perfect for Bettas (rather have long 20's but they seem to be hard to come by out here) and which provide room, particularly in a planted tank, for other fish, especially if the Betta's introduced last, which reduces the problem of a territorial reaction.
This also gives you room to design the bottom, do themes if you like, put in lots of pretty plants which will help to keep your fish and water healthy, have fun.
You can have a watergarden in which your fish can enjoy a everchanging environment as her plants grow - possibly, if you wish, in a sorority of female Bettas.
By the way, the pygmy cats, in case you haven't noticed this yet, are also the cutest things in the known universe.
They're happiest in schools and once you've started watching 6 or 8 tiny cats shoaling and zipping around your tank...
I'm just trying to imagine my otos, around 2 inches long, in one of the little desk-top emergency tanks around that size that two young, (one still sick) little Bettas are recovering in, and I can't.
But I can all too easily imagine a bored Betta in a 3 gallon tank possibly harassing the heck out of other little fish with nowhere to get away to...