I don't mind the fighting so much as I feel nothing has been resolved. Dean looked broken and tired afterward. No life in his eyes. Made me feel the same way. Sam seemed to feel it was fine to threaten Benny and hold that threat over Deans head. Made me tired and I don't know how they are supposed to move past this. Dean doesn't understand Sams motives any more now than he did before their fight. Heck I don't.