Contextual Analysis of "should have known better" in Lyrics

my heartbeat

better

now you're the honey trapped in my tree

should have known better

oh but we learned to hide

we would be calling out to the sea

as i laugh to myself

there's no more laughter as i think about the other girl

But as the time goes by, my hope keeping playing every day

There's no more laughter as I think about the other girl

i know you're not a fool

and waste the chance that i've been given

you wanted me to be your lover true

you been layin' out all night long. you telephoned this mornin'

and he'd never break your heart

lovers sometimes part

and he'd never break your heart

lovers sometimes part

all day i lay swimming in postmates

i shout with no apt words to say

there once was a time

hey

start

should have known you