Lyric discussion by ceeleaSHUTUP 

Cover art for Bigcitydreams lyrics by Never Shout Never

I thought this song was to someone else, like him singing to a girl or something.

is it in 3rd person though?

it's actually in 2nd person perspective, you can tell because it says 'you' 'he' and 'she' is 3rd person and 'I' is 1st person.