*Oh, so now that he got himself busted a second time for DUI, he’s thinking rehab … a full stint … might not be a bad idea after all?

Bobby Brown’s DUI arrest might be the best thing that ever happened to him — ’cause friends are telling TMZ the singer has finally snapped out of denial and realized he has a drinking problem.

Sources close to Brown tell us … even though Bobby has been through rehab before, he didn’t take it very seriously in the past  … because he didn’t truly believe he was an alcohol abuser.

But now, we’re told Bobby is extremely embarrassed by his newest arrest … and understands that his drinking has become a big, big problem in his life.

One source tells us… Bobby is strongly considering checking back into rehab … but so far, no decision has been made. We’re told his friends support the idea … but they don’t want to push him too hard because they know treatment will only be effective if Bobby makes the decision by himself.

Bobby, it’s simple. Get yo’ sh*t together and go to rehab, fool!