[There's a bit of a pout from him at that since she's right. Loving people isn't some perfect idyllic thing, though he does think there needs to be a line.]

I dunno, there's gotta be a limit. If I did that with someone like... like my dad, I'm pretty sure all he'd do is keep hurting me and I'd just ruin my life.

[That was something Finn had come to terms with in space, and something Fern has been while here in Trench.]

At some point you gotta protect yourself, no matter how much you care about them.