Step 1: Take your kid to sea world (or whatever to take his mind off things/spend quality time)
Step 2: Reinforce how much of a badass he is on a consistent basis
Step 3: Buy a cat or another pet
Step 4: Continue to make sure kid is happy (

)
Step 5: Repeat step 4 (^)
Step 6: If kid seems happy & hopeful...maybe* start dating again (*)
Step 7: Don't find a crazy stupid chick again (easier said than done)
Step 8: Profit the social benefits (There is no timetable to these 8 steps)
My parents got divorced when I was 10 and looking back it was probably one of the greatest things to ever happen to me.
Good luck.