Well, some people do need to go back to AA multiple times.
I dunno, it just kinda strikes me that she's using the "rehab" as some huge symbol of commitment to recovery.
Kinda like the way I've been spending $69 a month for a yoga studio I haven't gone to in two years. Spending the money isn't giving me the benefit, but I keep telling myself I'll go if I keep spending the money.
OTOH, I go to AA twice a week and have been sober two and a half years. I went to 90 meetings in 90 days--it was a much better investment than the yoga studio has been.