Happy begging/sad ending

I was his baby
he was my babes

i would never stop caring about him
not even one of these days

i was his friend
his was my strength

i loved begin with him
so i would do it all over again

i was his laugh
he was my smile

i loved kissing him
i cant deny

he gave me his heart
and i gave him my all
we shared one bond
and conjoined a heart

but if every thing was so right
what went so wrong?