You won't- I don't want- [...She can't think about those possibilities. And what is she supposed to say. She went home. She went home and left Winry, but right now isn't that just a convenient excuse? Isn't that just...]
...What will I have mattered when that happens? [She winces to say "when" but she knows Winry will argue if she said "if"]
[Action]
...What will I have mattered when that happens? [She winces to say "when" but she knows Winry will argue if she said "if"]