[lame-o]

Okay, I fixed the problem. I accidentally started the quest before I was supposed to (I was looking around the slums and I had killed Gaelyn Bayle or whatever and looted his body then I found the key to the cellar before I even finished Bodhi's first quest. So it started the "Kill Aran" quest chain while I was still supposed to only be trying to save that guy they were interrogating.)

So all I had to do was walk back into the Thieves' HQ and talk to the guy I didn't know I saved - he went along, then I went back to Bodhi and handed in 2 quests at the same time XD

And it was saying "Bodhi has nothing to say to you." whenever I walked up to her.