This gif gets me every time I see it. Oh my god. I mean just look at the two of them. Look at how happy Sirius is, and think about what this must be like for him. He just spent the last twelve years of his life in Azkaban, wasting away and feeling that he was responsible for Lily and James’ deaths. He’s been trapped inside his own head with only these old memories of people who have died, betrayed him or who probably hate him. And then he finally gets reunited with his last living friend, who thought he was a spy, who he never got to properly make up with before he ran off and got locked up. But Remus doesn’t care, he just wants pulls Sirius up off the floor and gives him a hug like that. In this moment I think Sirius knows that Remus must have forgiven him for it all. And Remus himself, after all those years completely alone. The only people who had properly accepted him for everything that he was poor and he too had only memories. Think about how many nights he must have spent drowning himself in fire whiskey. Alone. But he finally gets his best friend back and they can finally start to bury all those old hurts and make up for everything.
I don’t care if you ship these two together. It is still an undeniable fact that these two care about each other. So much. And it’s beautiful.
Also at the end it totally looks like Remus is going in for a kiss.