Sometimes this Anger can be there because a person was not prepared to explain their action before going ahead with their desperate decision.
the anger you feel is understood completely, there are questions needing to be answered, but at times there is no explanation to someones drastic action..[well undefined explanations to persons not inside the mind of the clinically depressed]
you may not get an explanation that tempers your current anger......
i hope in time you will understand her actions a little.......though it wont take away how you feel..............
Stay strong......keep an open mind...........
David