I have seen little interact as brothers in the past 2 season and more rivals. I have seen more brotherly love and concern for Stefan come from Klaus [in his own way] than Damon. While Stefan has show more for Damon. The only time I saw them happy to be in each others company as brothers was when Elena went off while being OFF. They even played ball in the living room. They sat side by side goofing around like S1/2. Miss it
It sort of confirmed an old theory that one of them need to die at the end. The triangle is the show. But you cant end it with one getting the girl, no matter how they write it [badly] Elena will always be indecisive. When she tires of the emotional connection with Stefan she will go to the wildness of Damon.....when she tires of the unstableness of it all with Damon she will look for the calmness of Stefan. How can they ever be brothers.....Elena never will give them room to connect or love other girls.