Poe was going to say more. From the volume, the look, and, yes, the very obvious fact his mouth was opening again after he cut himself off from and I'm. But let him be pissed about that, too. What was a little more fuel on the fire. In his own anger and worry, Finn was beyond caring.

Poe barely go just out before Finn was shoving forward. He wasn't bigger than Poe, that they lived in one another's clothes was proof of that. But Poe was a pilot and Finn was a foot soldier. It wasn't much to plant both hands on Poe's shoulders and shove him against the closed door, never minding the now neglected head wound. To step forward and cage him from shoving back in the split second it took to plant his mouth over Poe's.

He'd have to hear the rest of the argument later.