Medicine_cat_girl I think that's the name, guessed it correct! It was Shellheart! Here's the riddle:

I was alone when my denmate chose a leader over me,
But then I found the grace of love with the softness of cloud.
My kits grew into warriors, I'm still very proud,
It nice to know I have the love of a gentle fluffy cloud.
Who am I?

Good luck! And can some tell me what to put here instead of Good Luck?
~Night