There is more inconsistencies than than, for example she is against Halsin joining camp, also their argument in Gauntlet of Shar, i would say she doesn't even like Halsin, then she suddenly changes her mind in act 3.
There are a lot of inconsistencies. Some are caused by bugs ans some by poor writing. In my playthrough Laezel said something like "At last Moonrise towers" while being in Lower city. But Halsin related is just poor writing. Nothing more to add.
