You have to survive, there's no other option in my opinion.
But I admit in previous situations I have distanced myself from people, I got drunk a lot, I tried to sleep a lot - but that didn't work, I listened to a lot of music. Mostly I just felt horrible, but I had to keep on going, so I just kept breathing.
To love is to suffer. To avoid suffering, one must not love; but then one suffers from not loving. Therefore, to love is to suffer, not to love is to suffer, to suffer is to suffer. To be happy is to love; to be happy then is to suffer, but suffering makes one unhappy; therefore to be unhappy one must love or love to suffer or suffer from too much happiness. I hope you're getting this down.