Wow! 350 reads! Congratulations to DarkForestWarrior for guessing the last-and very tricky- cat, Snowfur! Keep guessing!

I loved someone with all my heart,
When she was just a kit,
But though I thought that she was mine,
We simply wouldn't fit.
So when, across the water, she
Decided to break law,
I took a vow to make her safe,
I didn't know what for?
But now I'm here among the stars,
A memory to see,
The one I loved was capable,
Of never loving me.