Kelly, there is nothing I could ever say or do that would make this any less painful, nevertheless I am truly sorry for your loss.
I love someone too and live in terror of losing them, I can't imagine what you must be going through and hope I never have to find out.
I'd imagine it must feel extremely hard to go on without her, I'm not sure I could do it were I in your shoes. All I can think to say is, try to think about what she would have wanted you to do now. Take care of yourself, let people in your life try to help you.
I can't promise the hurt will ever completely go away, from my experiences with my own traumas and pain, it never fully does. I can't say I know what you're feeling at the moment, I've known loss and I've known true love, and having known the latter I know that I can't begin to know how much more losing the latter must hurt than what I've experienced with the former. But I think I can say that I hope you can hold on to the belief that one day the pain won't be this bad. Don't give up. There are people all around you who want to help and support you.
When you feel ready, and I know you must be still processing this and that it's probably to soon to have any idea what to do, but, when you feel ready, there are support groups dedicated to bringing people who have experienced this kind of tragedy together to help each other. That is of course only if you feel it might help you.
Again, I am truly sorry for your loss. I may not be able to understand how much pain you must be in, but I do know you're not alone, I hope you know that too.