California is a no fault divorce state.  Therefore, there are no other reasons for a divorce which a court will recognize other than 'irreconcilable differences'.

Abandonment (to my understanding) is where one spouce either leaves the other one, and severes contact for a long period of time, OR where one spouce refuses to have sexual relations with the other.  I'm not exactly sure on the second part of my definition, but I am absolutely sure about the first part.

Some states still recognize various reasons for divorce (abandmonment, adultry, abuse etc.) but California is a no fault divorce state.

NOW, that does not mean that a spouce cannot convince a judge that the other spouce is an absolute crumb, and therefore they deserve better treatment as far as dividing up the spoils, but I think in most cases, things are pretty much ruled according to how they are alotted for in the legal codes.