Well, Arachne is alone. Ultimately, all her lovers are playthings, which she can discard without caring (a lot). I doubt there is anyone she really loves. And so, who would be there to care for her at the end?
Alas, if only it'd worked out with Dewcup!
In other news, this reminds me of the conclusion I and a lot of others came to in 3.5e D&D, where wizards are more or less invincible after level 17 if built properly, regarding a wizard fighting basically anything this side of Pun-Pun or another wizard:
"The wizard wins?
Yes. The wizard wins."
I knew if anything could kill Jone, it'd probably be a wizard.
Edit: I still don't get the passionate hatred for Jone, though. She was like a Terminator, really -- just a nigh-unstoppable machine programmed to kill that needed to be destroyed. What needed to be done was done, but there's no point in wasting all of that emotion on her either way.
The "monster" is not the only I'd be angry with. Dr. Frankenstein,
on the other hand, has a lot to answer for. Someone who can really ought to kick his divine butt for this one.