she slipped, she got up, she went to her sponser, she admitted it to you, she didnt blame or rationalize...
Id say you have alot to be grateful for.
She is in early stages of recovery. This stuff happens. Its what she does ABOUT it that matters. Sounds like shes doing the right stuff.
Lower your expectations, and you wont react the way you are.
A day at a time.
If give anything to have my ex husband do what she is doing.