Am I supposed to be able to have three companions? The knight in the docks district didn't join because I already had two companions, but the halfling druid joined up when I suggested it. Not sure if this is intentional or a bug.

If I remember, you can only have 2 companions with you in the act 2 of the Aielund Saga.

Yeah, I checked it out a bit after I made the first post. I tried recruiting a third companion again and the game wouldn't let me do it. It must have been some kind of glitch the first time.