Grief is really just love. It's all the love you wish you could give, but you cannot.
It's like they're your home. You can be happy and at peace doing other things but you will never understand what it's like to be truly at peace until you find your way back to them. Someone you just met can complete you. Then you realise, I have known you before, in another life, in another time, I was yours and you were mine. Imagine feeling like no one else will ever understand you until you know this person. Imagine hearing a scream inside your head, and it's yours, and no one else can hear it, that's what grief is like. Now Imagine the same thing except this time, someone else can hear that scream. Someone else is screaming with you.
We are not alone in this. We will not suffer in silence. Grief takes time. We need to allow ourselves a break to heal the open wounds. To courtorise the pain of feeling like the one you love isn't coming back. We will survive this grief.