Wow .. I am so sorry you have had to deal with so much heart ache in such a short time.. Losing someone we loved once regarless of the last time you saw this person is still a loss.. Im glad you got out of what really was a abusive relationship.. Very smart move !
Do you have a Therapist ? They can walk you through the process of grieving and learn ways to find healthy relationships and coping skills to boot...
I think you will find everyone here is fighting a battle of some sort and always willing to lend and ear or a shoulder.. Just keep letting it all out. Try to engage in life around you, even slow small things at a time.. Find a hobby or something that you once enjoyed and just try to give it a go even in small doses..
We are here for you . PM me anytime