My husband told me he hates me and, I am stupid more than once today I want to know should I let it go ?

I sure would let what my husband said go & chalk it up to just a bad day. If this is not the norm for him, just let it go. I would however be more worried about my 13 yr. old sister being missing. IF she's not back by tomorrow, no one has any idea of where she is, PLEASE let the Police know about it. This IS serious, this IS something to be worried about. In this day & age I would put out an all points bulletin out for her. She is far too young to be out "on her own" at 13 yrs. old. Without fail I would notify the police tomorrow morning regardless of what anyone else says. IF her friends don't know of her whereabouts, do something about ASAP...I DO wish you the best...:)