About 40 hours in and early on in the playthrough suddenly all of my companions tried to romance me all at once and I was like "this makes no sense int he middle of the dungeon." But now I'm wishing I had not turned maia down. Is there any way through the console to reset the decision? 

 

I tried 

CompanionAddRelationship Companion_Maia(Clone) Player_[My watcher's name] positive major 1

But that didn't do anything.

Is there any overall guide to console commands?

There's a console command thread in one of the other forums if you haven't checked it - https://forums.obsidian.net/topic/97317-the-console-command-thread/?hl=%2Bconsole+%2Bcommand

There don't appear to be any direct console commands to reset the choice. But is there anything to be done to reset the choice of turning down romance or am I just out of luck?