I suppose it depends on how much he was dependent on alcohol but it might be that the "personal issues" were the club agreed he could take time away at specific facilities to help him over the first few months of getting over the need for drinking. I suspect if there was something more personal (blacked out drunk when looking after the baby, becoming more abusive to his partner, etc) they weren't covering it.
It's still conjecture, though.
I think people are conflating the 'personal issue' he was out with and the fact he gave the booze up in the summer. I'm not sure they're related at all.I'm also not so sure he had a drink dependancy issue either, more a recognition that it's not going to help him as an athlete and a dad.