They also ask for alliances and agreements when they don't seem to value them very highly (like I'd have to throw in ~1000 gildar to make it worth their while)

Sounds like some of the girls I dated.

Hey AM_shark, why do you have a picture of my ex-girlfriend for your avatar?    Are you sure you're not her?    Is there where we went wrong--I should have waited a week after our first date first?

I've had ai's tell me we should have treaties together too, then once i say "okay sure" and ask them, they dont even want to consider it (cant click on them)

Devs, have the AI's actually come with their own trade / treaty / marriage requests, pre-set in the trade screen when you click "yeah dude sure!", it makes no sense and appears so broken, to just throw you to the same empty diplomacy screen you could have just went to yourself without them even asking.

Like, what are they asking about if its just an empty non-proposal when you go there?

Answer:

The AI asks for marriage.  Then actually sees you and decides not to go thru with it?  Well that means you are ONE UGLY @@@.

I actually feel more rejected when the AI tells me it has new cool technology and we should trade. This feels like the game is telling me it once had technology trade and they forgot to remove the AI adverts for it.