Finn is so stupidly charming and nice and adorable and Poe's entire squadron (and the General) basically adopt him and get like rabid dogs whenever someone is mean to him or openly distrustful or even just exasperated with him for not knowing things. Finn thinks it's only because he and Poe are friends (friends who are moving towards something more, really), and while that's nice, he doesn't want them to feel obligated to him because of Poe.

But then he hears them giving Poe the shovel talk. And while he really hopes they never do any of those things to Poe, it's weirdly nice to know they like him because they like HIM and not solely out of duty to Poe.