Your are correct. Since they are both liars do we know for sure if Bella was in fact in the fridge? LE took it so hopefully we will find out eventually. I just hope MM cracks with the real story unless he is seriously telling the truth or believes it as the truth.
Could she have made up some story about what was in the bag to pacify him? He looks stupid and gullible. Maybe Bella was never in the fridge.
Drug addicts are quite good with their lies and storytelling.
Where would she be?