By the end of the series, Jeri snaps out her depression, thanks to Takato and Calumon, and realizes that humans can make their own destiny and that she was never meant to be alone. It was never stated but certainly Implied that Calumon was her second partner. Jeri not only attended Rika's birthday, but she along with Calumon also helped Rika's grandmother, Seiko Hata with all the decorations as well.
Jeri
Rika