I am truly sorry for your pain and for the pain of her family. I wish i could say something to ease your pain but I’m afraid I don’t have that wisdom.
I have lost few close friends and loves ones.
I am still learning how to cope with these loses. The pain pf each loss is piled on top of the previous one.... so, I guess what I am trying to say is that I hope you will have the time and space to deal with the emotions as they come, instead of ignoring them. This was my mistake.
I made the mistake of escaping from the pain for a long time but it finally caught me.
The loss may feel surreal for a while and if so just live through it. You might feel numb at times and angry at things that have absolutely nothing to do with this painful loss. Please pay attention to those unrelated emotions.
The waves will come and you will learn to embrace them as you will soon understand that you have no other option.
Undealt emotions come back to hunt us like a loan shark.
Sorry for blabbing. Again, i am truly sorry that you are hurting. I wish i had efficient strategies ro share.

On another but related note: I am very curious. In the title, you indicated that the boyfriend took her life however you made no point to it during the post. Why is that? I am assuming that this brings a different level of pain, more importantly anger, to your loss.