I've broken up from 4 long terms relationships and reacted diferrently to all of them.
I also think that how you feel inside about yourself plays a big role. Maybe if they leave you when you are vulnerable or if you are dependent on them in other ways it takes longer.
My first love we were together a year and he ended it and I was upset for a few months but deep down knew we were more like brother and sister.
My second love we were together 4 years and he ended it and I was inconsolable. I could not concieve of a world without him and it didn't help that we both still truly loved each other. I am completely honest with myself it was probably 5 -6 years before I felt close to normal again. A lot of that was to do with me though, as I was so closely bonded to him and could not see a world without him.
My third love we were together 3 years and I was not at all upset because I was not terribly in love with him.
The fourth one I loved less than the second one but the painw as worse. Partly because he left when I was vulnerable and quite ill, partly because we were engaged so in my mind it was a lifelong relationship I never expected to end, partly because he was so cruel about it and it was so completely unexpected. I feel in that case I was in shock for six months before the pain even properly started The first year was agony. The next 6 months was pretty awful. Then after two years I stopped thinking about him or caring bout him at all really. It just happenned naturally as I got the grief out.
As a pp said, I still wake up (three years on) from that last breakup with cold sweats and unpleasant dreams as betrayal leaves scars.
What is important is that I thought i would never love again and could not live without two of these men and I did and was perfectly fine.
I won't say I met Mr Right straigh away...it's been two years of dating and have only finally just now met one I really like and want to be with and for various reasons that probably won't happen - but the importan thing is that we are reminded our hearts can be broken and they still work.
Terrible, horrific heartbreak is not something everyone experiences and I have been through it twice now. I would say from it you learn so much about yourself and you either become broken or you become stronger. I chose stronger and I am more loving and compassionate as a result of my past.
Hang in there OP. Grief is like a storm...it DOES eventually fall to calm seas and there is no short cut through it. The grief you feel is part of having a big heart and please never be sorry for that
xxx