Red, I know you probably don't want to explain further what kinds of "intimate things" she was discussing, but in general I have learned not to listen to anything that comes out of drunks' mouthes. It might be truth, it might be wishful thinking, it might be muddled threats, it might be complete fantasy, it might be ANYTHING, and I will drive myself insane trying to put it into one of these categories and protect myself from any pain that might be coming my way.
Maybe you need a mantra, or an alternate place to sleep when she starts going off on these la-la drunken tangents. Better than trying to reason with her the next morning, you might want to just avoid the insanity altogether.
Remember: just because it comes out of her mouth does not make it so.
Protect yourself, stay the course, be compassionate but detached.
And stop listening to the crazy talk as much as possible. That's my two cents, because that's what helped me survive the letting-go process.