Bro Obito makes me so sad and for THESE REASONS.
You see, it would be easier to hate him as a character if he had any strong ill will to everyone. If he despised Kakashi, banished him from the chance of having a better life in another world, it would be so much easier to hate him. But he didn’t. He literally just wanted Kakashi, Rin, Minato, and himself back to normal again. It’s very messed up, as he is, but it’s so honestly kind. That’s why I believe that the real Obito was never really gone. If he was truly as much of a bastard as he pretended to be, he would’ve been a tyrant, but he wasn’t. That’s also why he was able to he somewhat redeemed in the end.
And another thing, I think his attachment to Kakashi and Rin is just from trauma. His attachment to them is only in his memory from when he was younger, and he never saw them in much of a different way. This is more about how he saw Rin, but a little bit of Kakashi too.