Fluffy theory goes hard

No I’m going back on my theory abt fluffy actually being a dog that became human, like this is twice that we see how he has been seen as a dog in the past, but the “it’s you who took it” does not make sense then.. could it be that like when the dude became a hybrid, it was actually another guy AND fluffy..? Or or js fluffy is so far gone that he sees himself as a dog in flashbacks.. even tho I think it’s little A’s flashback..