My AH tried AA meetings which he attended on several occasions and was never comfortable there. He didn't like the crowd and thought "I'm not like these people". He didn't like that others tried to approach him and just felt like a fish out of water. Back then he didn't think he needed rehab and thought he didn't need AA either and that he can do it on his own.
He quit cold turkey for a few months, but relapsed.
He had also seen a doctor to prescribe him anti-depressants. The first drug the doctor prescribed him made him feel very weird so the doctor took him off the drug and prescribed another anti-depressant which was better.
After failed attempts to stop drinking on his own, he realizes he needs rehab. He's checking in this week.