Someone wrote that Bum is probably SW mother replacement and he kept him to torture him in...

Someone wrote that Bum is probably SW mother replacement and he kept him to torture him instead of his mother but I think that's not the case. Women in general and even the one looking like his mother "simply" ended dead...SW is too traumatized to keep them alive, he kinda want to tortured them, but not keep them alive for too much time or it will be painful for him. I think the thing that made him keep Bun alive was the fact he was...different. He loved him (remember that was the thing that rescue himself from being killed), just the love SW wanted all his life. The fact that Bum is so similar (outside) to his mother was surely a trigger and it still is, but I believe the fact that his personality is so different is what made SW think they are two different people. In my mind the love he feels for Bum is what is fighting against all his pain. People can say that SW never loved him, or that he is a replacement, etc etc but I really think this is the story of how love, even sick love, can fight hate and madness. And that even a sociopath can love. Some says to not romanticize this but if you look at SW reactions (when he thought Bum escaped, when Bum attempted suicide etc) you will see that there is romance, even if it's between schizophrenic. Am I wrong? Or, even if I'm right, will love succed? Will SW find his peace or mind and Bum will become crazy? I don't know, but this is my perception...let's see...