it's hard to deal with losses of relationships in life.
cos sometimes with the loss comes a loss in identity.
you have invested greatly in something, you've sacrificed, you've given up parts of yourself and accepted another person, you've given in the time and effort to love, you've even invested some of your dreams into it, trusting that these dreams will come to fruition.
and when the loss comes, the meaning of what you've invested in is questioned. the result of your sacrifice is questioned. the reason behind accepting another person is questioned. you wonder if the time and effort was ever enough, or if it had ever meant something to the other person. you question commitment and if its value still exists in life. your dreams is/feels cracked/shattered/lost. you wonder if your dreams will ever come to fruition again.
you question if what you held dear was ever worth it.
you wonder if your ideals are ever right. or if you've been too naive.

when i speak about loss in relationships, i don't just mean bgr (though that is the most obvious). i mean a loss in friendship, a loss in parental relationship, a loss in a deep connection with another person.

sometimes we move on quickly, we pick ourselves up, shake off the doubts, and move on from there with certain wounds (resolved or unresolved).
at times, we need to give ourselves time to grieve over it.
and grieving does not occur in a day or a month. grieving takes time.
it could be delayed for a few months if one doesn't allow onself to grieve.
it could be fully resolved in a few months, or not.
it's dependent on each individual person.

As friends, we may sometimes have to provide that environment for them to grieve. Grieving alone is one of the toughest things to do cos there's no support.
so let's watch out for the people around us who may be grieving, and be there for them :)
having said that, it may sometimes not be our roles (could be we cannot give the amount of care needed, or we're not as close, or it's inappropriate) to be the support for the grieving person. if that is so, then we've gotta refer to the right places and persons :)