Try not to take it personally. There's this creepy school of thought i call the "divorce mafia" that turns people into horrible bloodsucking idiots for a while. I've seen it happen with people I know, and I never realized how it worked until I hit my own divorce. You're in a really vulnerable, confusing state of mind, and then a lot of people (lawyers, friends, etc) start telling you how right you are and how bad your spouse was, and how much you deserve, and how you should be aggressive, go for the whole hog, etc.
I think it especially hits people who feel guilty at their own responsibility for the breakup. It's a lot easier than cleaning up your act and doing the right thing.
Take good care of those kids of yours. They need as much sanity and stability as they can get. Keep good records and be prepared for anything. Hope it gets better soon.