It can't be any clearer to people anymore, Obito's resolve has been proven even further through Tobirama's words. If it's not any clearer to people then it already was, then I'm not sure what to say to you ignorant part of the community.
I'm attempting not to spoil the chapter in any way, but if you're so interested in an explanation, search for the other 4729360 threads I've made on this topic.Explain your argument lol