I'm not looking for anything particular here, just general advice and knowledge.

From what I gather, there's two kinds of approach when it comes to these women:
1) the "sad breakup": still attached to their old partner, might need some emotional support, but largely not worth getting involved with... at that stage, you'd be a crutch, not a partner
2) the "angry breakup": similar case, where she wants to quickly move on and live life free of a bad relationship... you're not a crutch at that point, just a stepping stone

Either way, I've heard it's best to just leave these kinds of women alone and just move on to someone that's been single for a while.

Does this sound accurate?