"Family isn't complicated for me," he says. The implication being Love is.

It leaves the door to that conversation open a crack, but it's better than ignoring her question. She's right, and he knows she's right, and he's not too proud to admit it. He'll just admit it silently, right now.

There's a moment of quiet, then BB-8 butts in, scolding Jyn, and Poe ducks his head to hide a smile. "Buddy. Buddy, it's fine. I'm fine."