Oh man, you're just having a banner week aren't you.
Sure, maybe the guy who crashed into you should have been held accountable for the accident. But that's hardly relevant to your situation. You were arrested for driving while intoxicated because that's exactly what you were doing. It doesn't matter whether or not you caused the accident, you could just as easily have been arrested for DWI without getting into an accident at all.
It's bad luck for you I guess that you got caught this way (good luck for everyone else on the road), but I don't really get how you posted this thread expecting to get sympathy for that. Drunk drivers are demonized for a reason. It's an incredibly inconsiderate, reckless, dangerously stupid thing to do.
Just, like, grow up dude.
And while we're at it, stop trying to avoid the mother of your unborn child, for fuck's sake.