Sounds like just some bad luck with people, or maybe a bad group, too. How long were these sponsors sober? If they havent been sober and coming to AA for at least a few years, that could be something to consider... I talked a bit with one lady who had been sober just a year. She had all kinds of problems in her own life and I texted her one day and though she was usually helpful she admitted honestly to me that she had just been thru some awful family stuff and couldn't deal with the subject of drinking, and then she sort of backed off from responding to me as well. I dont think she goes to AA anymore either.