She hasn't seen him since yesterday but now it seems important she find him and shake him and slap him or punch him or something to express the unhappy seizures of disquiet racing through her system. Aimed at him, the liar, the jackbutt, the yoink of a thieving trash rat who she will see shredded to the core of his miserable soul for deceiving her this way.
They didn't set him free because of her. They didn't release him and let him wander the Underlord headquarters because Divinity Gont said to do so. They let his sorry, pathetic carcass wander free because he is one of them.
Now, fair enough. Didi's known there's more to his story and chose to ignore it. It's as much her own fault she's now furious and reacting so badly she's sure she's going to explode any second. As wildly hypocritical as her reaction is, part of it comes from fear.