what did i do??????????

every little disagreement,
breaks my heart even more,
your my man but, at times it dont feel it,
the other night you got mad,
and said some hurtful things,
usually when a girl is upset she sings,
but every little fight we have,
my voice is weak,
it hurts to bad to sleep some nights,
like the other nigh, my hear t broke cuz somethings you said,
but, i still love you!!!!!
i just wanna know what did i do????????/