When Mitsuha takes Colette and Sabine to the neighboring kingdom (Sabine basically forces herself on Mitsuha), she's super rude to Colette when she first meets her. When they become friendly, they take over Mitsuha's RV to play video games all night (basically ruining Mitsuha's original intention of bringing the RV to relax).
And when Mitsuha brings the girls over to Japan for a day of fun and shopping, the girls understandably ask to come back with her all the time. Colette is the one who immediately takes back her request when Mitsuha tells her how much money she spent on both of them for their day of fun, but the selfish princess doesn't understand at all. In fact, Mitsuha tells Sabine that her life force is sapped every time she takes them over, but she still asks Mitsuha of this (I know it's a lie Mitsuha made up, but still!!!)