Well, I know what you feel like. My parents split up. . . about exactly 9 months ago today, if I'm correct.
I didn't know what was going on. My parents called me and my brother into the family room, and told us they were getting a divorce. Needless to say, me and my brother ran out of the house. It took our parents 3 hours to find me, and 3 and a half to find my brother.
That pain is so. . . unreal. It's more than anything physical that can EVER, EVER happen to you. It's just too much to describe.
Life was hard when my dad left. I grew hatred for him, and that hatred still hasn't subsided. And you know what? Less than 6 months later, he moved back into our lives. It was even worse than the break-up.
Just like a snap of the fingers, he was back in our lives. It was extremely hard. Not that much better, though.
I see where you're coming from. It's a hard thing to cope with. But you'll have to get through it. It's really, really, REALLY hard to get through, but, hopefully, you'll manage.
And trust me, if you're not fond of your parents now, wait 'till your dad's gone. You'll hate him (probably your mom, too), a lot.