You didn't answer my question . Well , let's leave it .
But , if you think that Rin is the reason , then go and read the manga . He has the right to ***** about her . And because that he mentions her often , is because Kakashi and Minato are there .
Let's take a look at this , if Naruto knew Obito as a hero on the leaf , and asks Obito , why are you doing this , he will answer because you let Rin die ? Lol , don't make me laugh. That was just to mess with Kakashi . Rin was the thing that opened his eyes , because Uchihas are sensitive , and they all go nuts when they see someone killing their love . He began to understand the cruel of this reality , not because Rin died , but because the systemm is wrong . All the shinobis who have survived in this world becomes trash , and Obito knows it very well . And besides , he knew the truth of Rin's death , and he doesn't blame Kakashi . What's your point ? You're merely a blind hater or something , you can't or don't want to understand Obito .
And one last thing , if you have someone like Madara at your side , you excpect to be good ? Lol , no . Madara was the one who was on Obito's side , he was the one who made Obito join the darkness . If he had Minato , he would be a good guy again .
I don't blame you , it's very complicated , Kishi made it very hard to someone to understand , but , I've been able to understand it .