How you feel is how you feel, Ineedanonmol. Don't fight it or try to talk yourself or be talked by anyone else into different feelings. They will pass.
Right now you're grieving, not for him, not for the relationship, but for the happy life your ex promised and then took away. It was never real, but you believed in it for a while, and probably hung on hoping too long. It's hard to let go!
Also, life with an abuser is a bit like a roller coaster, all fear, adrenalin and hyper-alertness. When you get off, how do you feel? Sick, dizzy, wobbly at the knees, not sure which way is up? Right. That will wear off soon.
You'll be fine, just give yourself time. If anyone asks (CFs) you'll be over it when you're over it, you'll announce it then if they like.
Is your DC his? If not, you never need to see his face or hear his voice again. Ever. If he is, you need to minimise the ways he can reach in and mess with your mind. You'll need good advice in that.
I hope you got your nonmol!