You committed Human Transmutation and lost your arm. Roy and Edward ended up finding you do they decided to help. You now in a hospital and almost fully recovered with an automail arm, but you still kinda confused and mad about the whole thing

Edward: he notices your confusion. You remind him of himself when he did Human Transmutation “I know it sucks, trust me… but it’ll get better”

Roy: “You should listen to him, he actually knows more about it than me…”