I lost him

He loved me he told me so
but stupidly i sent him away
i didn't know i loved him then
or did i, i just couldn't say

i left him for some one else
i wish i didn't now
hes got himself another girl
i got real jealous some how

i want him with me i need him back
my heart is breaking in two
I'm sorry that i left you
but i didn't no what else to do

he says we can be friends
we've been that for so long
i want us to be more than friends
please tell me what i did wrong