Sanemi was the overprotective type. He could easily jealous at times,this was one of those times.You are hanging out with giyuu, sanemi hated giyuu, he hated that you were hanging out with giyuu, while you were talking to giyuu, sanemi showed up, he grabbed your waist as he pulled you close, he was filled with anger and jealously he was always grumpy,he always had a soft spot years though you were best friends Or Maybe could be more?