I don't think there's a clear cut meaning of this song, people are taking it way too literally. Every lyric of this song is literally the title or main part of a chorus from another well-known song. I'm the very first line, better than words(1D), more than a feeling(BOSTON),crazy in love(Beyonce&jayz), dancing on the ceiling (Lionel Richie), every time we touch(..the honestys too much),I'm all shook up (ELVIS),U make me wanna(USHER),How deep is your love(BEE GEES),God only knows(BEACH BOYS), Baby, Baby(JUSTIN BIEBER)... I could go on, but I won't, I think I've made my point. If they are saying anything at all with the song which I still seriously doubt it is that their love is so great for whoever or whatever they can't find the words so they're going to use the words from the most classic love songs they can find. I actually think it's the most genius lyrics and song in their entire catalog. Absolutely brilliant.