I hope I hope I hope it's meee!
Recapping my head canons for the Littlest Pet Shop shippings I have in mind. Minka and Russel's is the closest to existing in the actual timeline of the series. Minka, I think anyway has had a crush on Russel since "Bad Hair Day" and only came out about it in time. Russel for that matter slowly gained feelings for her in time as well, something Vinnie would often tease him about.
They have an odd chemistry. He looks out for her like a family member but loves her like a spouse. Minks if the more out spoken bout their relationship as well.