Diamonds and Why Men Buy Them Lyrics

Lyric discussion by YumeKibo 

Cover art for Diamonds and Why Men Buy Them lyrics by Pierce the Veil

Firstly, I think he says: "Please say", not resay. Secondly, in my opinion, this song is about an actual relationship and she broke up with him, but he wants her back, because he never stopped loving him. Probably, he is "the sky" and she's "the moon" and he asks if "this what it's like ?" meaning, is this the way it feels when you have a broken heart ?