Adult Fiancé bed wetting when drinking..

Oky so odd post here… but my significant other all of sudden will drink 3-4 beers and full blown per the bed… and tbh I’m really tired of it. Over the years I’ve noticed he’s been drinking more, enough to say he’s an alcoholic, but of course they never admit to being an alcoholic, there’s always excuses, denial etc… but I’ve seen him drink a 30 rack with the guys through out an entire day and then some, and wouldn’t wet the bed, and now he has 3-4 and cleaning it all up the next morning … I mean are there any medical indicators here? He has the excuse of “well if it happens again I’ll go to the doctor, my bladder muscles aren’t working correctly, and they have medication for that”… yeah I don’t think that’s how it works…