I'd say it's definitely doubting religion. Nate writes about that a bunch, but I think this song is where he states it most clearly.
Also, it seems like he switches perspectives, everything before the second "I float" is from the guy's perspective, and the rest is from the girl's. Just a guess, but it makes sense to me. And if so, the guy messed her up pretty bad, and possibly was the one to cause her to question her religion.
I'd say it's definitely doubting religion. Nate writes about that a bunch, but I think this song is where he states it most clearly.
Also, it seems like he switches perspectives, everything before the second "I float" is from the guy's perspective, and the rest is from the girl's. Just a guess, but it makes sense to me. And if so, the guy messed her up pretty bad, and possibly was the one to cause her to question her religion.