Have you seen Byleth's dialogue's in Fire Emblem Heroes? She has some conversation with a character name Sharena, where Sharena tells her that "friends and allies aren't the same thing", and Byleth responses "In that case, I don't think I'd ever had a friend",,,its such a sad line that even Sharena says she doesn't know how to respond
I haven't seen those yet, I'm still waiting for Bylass to show up cuz I missed the summoning period :(
But damn, that's heartbreaking











