She was Hazel's (old) love interest. She is shown to be aware of Hazel's feelings for her, and she attempts to avoid him at all costs. Later on, after Fiver's vision of the warren's destruction, Hazel asks her to meet them at Frith-down under the bridge, but she expresses doubt over leaving the warren, pointing out that it might be more dangerous outside of the warren. She asks him to give her some time to think about it, but she instead informs Captain Holly of their plans, as revealed later on by Fiver.
Dewdrop is later seen attempting to escape the destruction of the warren along with Captain Holly. In the end, she doesn't escape, and is killed along with every other rabbit in the warren, but Holly.