Yea. If want lawsuit will drag and drag also ma. Besides, since
he drives a car, maybe he is well off enough.
It can also mean that his conscience prick him, so maybe it's good
la. He realise that he make the mistake, and so long as both of you
settle OOC, no problem. All he needs is just change the
bumper.
Heck, he may even get a full bodykit while he's at it.
Good man do exist. Its whether you have the luck to meet them or
not. 
Car drivers also la. Don't think just cuz you drive a 70, 80k
machine then very big F**k, the road don't belong to car drivers
only, even the motorcyclists have a right. I always make it a point
to look out for motorcycylists, even on expressway. Because
motorcyclists got family. He/she may be someone's husband, wife,
father, mother, child, etcs.