Well, here it is a few years on and still going strong. Even if it's had bit of a rough ride she's still looking happy and healthy and got a nice big tank all to herself. Much more preferable than some of the alternatives.
It's nice that you have developed a bond despite all the hassles.
The long term commitment is one of the reasons I've never had a big fish, even though I want to at least once grow a monster from a baby, just to do it., the other reason is the bare tank you need to keep them in. Not criticising your tank but I've always preferred rocks and plants and with a monster it's a recipie for disaster.