So sad to see you back because of a loss. However we are here for you as always. Firstly know that we are thinking of you and wishing you well. Secondly you already know what you need to do.
I know someone else on this forum who got hurt. I am of the view that they tried to make themselves strong and in doing so they failed to realise that intimacy needs vulnerability, you cannot hide your heart away and take no risks if you want to have a loving relationship. I am wondering if you think you might have done the same thing?
The reason I say you know what you need to do is because you have started no contact.
If she wants to be with you, she will reach out. If she doesn't, her fear or upset outweighs her courage and need to be with you. I suggest you give it time, let her miss you and your relationship. Know that she will not just magically get over you and that by letting her work out if she can handle a life without you, you are giving her a chance to come back on her own terms.
Mostly and as usual, I suggest you focus on yourself and why you chose to behave as you did? What can you learn? What can you do about it?
Hugs from afar,