hurting myself the usual way
The end of a relationship, now I have experienced witnessed it, feels like I would imagine a crash on the highway with 100 mph. It's as (un)expected (everyone knows tyres can be lost or pinched, there are drivers heading the wrong way, and occasionally even lightning strikes ... usually twice, as they say, and who knows what it would to to the servo steering) and both hurt. That's a good reason not to drive and I have successfully followed this course of action for quite a while now. People have been known to voluntarily apply this strategy to relationships as well, but both intentional and accidental loneliness can end some day ...
Just hurting myself the usual way, practising style (comments welcome) and generally avoiding doing the tasks I had better accomplish ASAP.