Scratte

Scratte was a female saber-toothed flying squirrel who was the center of Scrat's affections for a time. She played a minor role in Mama Imelda Bot: the Riveras vs. the Machines.

Biography
Scratte once hunted for acorns much like Scrat, and tried to steal his through manipulation. He fought her for it multiple times, but they eventually fell for each other. They quickly married without giving it much thought, but their relationship proved to be dysfunctional, and they violently argued. In the last very last scene of the Riveras vs. the Machines, Scrat can be seen drowning her in a bath tub, reclaiming his acorn.