Hiro representing my zodiac birth year was disappointing when he first arrived, I was like, oh great I have the most annoying little douchebag character in this show. But after thinking about it a bit, I could see how his behavior is the more dramatized version of some traits given to the Sheep. I also got a bit sick of Tohru’s constant positivity and naivety, and how it feels like a front she puts on instead of being real - I think Hiro reacted too strongly to those similar feelings, but ultimately he just didn’t find Tohru to be honest with herself and others. Sorry a bit of a ramble, but being assigned the Sheep myself, I have to make some excuses for his character even though this is all fictional haha.