What is she supposed to say? You basically said you'd think about it (which makes you sound uninterested) and blew her off. She isn't going to go beg you to come back. No one would, even if they were enthusiastic.
Personally, I would have just made the changes I agreed with and discussed the ones I didn't and given it a try. My agent had a whole list of changes to make after he'd already had me do an r&r, and it didn't strike me as odd, honestly. Granted, he'd signed me at that point, but even if he'd come back asking me for them before that, it wouldn't have seemed that strange to me.
Anyway, you've already made your choice and acted on it, so I'm not sure what we can say that is supposed to make a difference, unless you just want us to agree that you said the right thing. Personally, I would have given it another go, but if you don't feel like the changes are worth it, then it's not something you should do.
Not really sure what you want from us.