np, and I'm not saying your choice is wrong and you shouldn't stay on the fence, I'm just saying your wrong for stay neutral. just try and decide with path you'd like in case you get into a spot where you need to make a choice so it's not rushed. also it's nothing you do in the fight that saves them, you need to have Vicoria and Feliar's like at a certain amount and they side with you no matter what. I think it's 75 but I'm not sure since I just max it out when I like a character enough lol.
(also I happen to grind a fuck ton so I basically one shot everything but try and keep them alive in the fight if there on your side since idk if they can die when they side with us and lose all the health)