A time to mourn
Now is the time to mourn. Grief is good. You are grieving for the love you thought you shared. For the intact family you had built and for the person you thought you were. You grieve for the loss of your future together, for the loss of children you never had or for the 'loss' of a parent to the children you have. If you have had a long marriage, you mourn the loss of a possible retirement together. Who will care for you? What went wrong?
Time for talking
This could be a time for talking. You could recognise that love once lived here. There were good times and you were once loved and you loved in return. Take the initiative. Phone or write a letter. Suggest that you could perhaps talk. Honesty may be rewarding.
Say how you feel.
To everything there is a season
To everything there is a season, and a time to every purpose under the heaven;
a time to be born and a time to die; a time to plant, and a time to pluck up that which is planted;
a time to kill and a time to heal; a time to break down and a time to build up;
a time to weep and a time to laugh; a time to mourn, and a time to dance;
a time to cast away stones. And a time to gather stones together; a time to embrace,
and a time to refrain from embracing; a time to seek, and a time to lose;
a time to keep, and a time to cast away; a time to rend, and a time to sew;
a time to keep silence, and a time to speak; a time to love, and a time to hate;
a time for war, and a time for peace.
From Ecclesiastes Chapter 3, Verses 1-8