"The time when there is nothing at all in your soul except a cry for help may be just the time when God can't give it: you are like the drowning man who can't be helped because he clutches and grabs. Perhaps your own reiterated cries deafen you to the voice you hoped to hear."
This is from page 46 in A Grief Observed, by CS Lewis. I believe there is truth here. I've been in that darkest place before, that lowest low, when I felt completely alone and abandoned by God and I was so, so angry with him. All the worst things I'd ever temporarily thought about him over the years suddenly became true. I believed them because I didn't have the strength to believe anything else. That's just how it is when you've been cut, when you're wounded and bleeding. Hard and painful things happen to us here on planet earth, in our homes and with our families. Some hurts are bigger than others but just because you've gotten over something or you're not currently going through a storm is no reason to invalidate the pain of another. Let the one you care about say what he or she needs to say, even if it makes you flinch. Be a witness for her and she will trust you for life. Presence is powerful. You don't have to have answers, just use your ears and be willing to cry your own tears in hopes that it may lessen the number shed by the one in grief.
If you're that one today, don't run away from your pain all alone. Find someone who's able to help you carry it together. May love, courage and hope find the way to trickle slowly back into your heart, just as soon as you're ready for them.