Yes, I know they're wolves and again, yes I do know those are warrior names. Let's pretend okay?
Anyway, HUUUGE story behind these two. Long story short, they're two RiverClan warriors. Now Tigerstorm (Dark tabby) fell in love with a ShadowClan cat, Hollycloud. But Snowfall (Silver and white) loves Tigerstorm! Hollycloud dies during kitting, Tigerstorms kits. Snowfall tells Tigerstorm how she feels. Tigerstorm tells her, he loves her too, just not in the same way, then leaves to ShadowClan to spend his life with his kits.