No, she's got a lot of dialogue in the first 2 chapters, and then she backs off. She gets in all her friendtalks, and all her scenery comments, etc, all in the first 2 chapters.
Lemme see: you will have gotten the Gorion burial talk, a talk on finding the diamond, a lenghthy interjection on finding Tarnesh's spellbook, a friendtalk about how good it is to be on the open road, a friendtalk where she asks you how you're doing and expresses concern that you might boot her from the party, a comment when you run into Lord Foreshadow about Waterdeep, and then a really long scenery comment on entering Beregost. That's a lot for 2 chapters.
If you haven't run into Foreshadow yet, you will. (Heh. My own foreshadowing.)
She's also going to comment whenever you have a dream.
From this point on, you might get the odd interjection from her, but she will quiet down.