Alcohol addiction

Any tips would be appreciated.. I’ve never dealt with this before.

I’m not exactly sure what to do.. I think my partner of 8 years has an alcohol addiction. He hasn’t gotten a DUI or done anything crazy while drunk before but once he has one beer, he just can’t stop drinking. He will buy 2 beers at 7/11 and say he only buys one or two so that way he won’t drink so much. But EVERY TIME he drinks those, he goes to the 7/11 again and buys 2 more, and that continues throughout the night. (I’d also like to mention that we live 5 minute walk away from 7/11 so he’s not driving). He just gets so drunk he doesn’t even remember the night before and he is just so annoying while drunk! He knocks stuff over, can’t walk straight, can’t fucking make his pee go in the toilet. Just so much. I’ve tried telling him that so many times and he is so considerate and apologizes so many times and says that he will do his best to do better and nothing has ever changed. I’ve tried offering to help pay for therapy or rehab or anything that he thinks could help him and he just says he doesn’t need it. He doesn’t drink EVERYday. I would say about 3-4 days a week. The other days he will say something like “damn this makes me wanna have a beer!” Or “I wish I had a beer right now!” I’ve told him it makes me feel uncomfortable but he just seems to forget I’ve ever said that. His brother moved in with us a month ago just for a little bit while his house is being renovated but his brother is a very big drinker. Loves to go to bars and take Ubers home and brings a 6pack home everyday after work. I’ve told my partner that I fear he is a bad influence on him but I’m reassured by the reminder that he is only here for another month.

If anyone has had experience with alcohol addiction or knows someone who has.. please offer some advice. I’ve never known anyone with an alcohol addiction and neither have my friends. I’m just not sure if I’m overreacting or if maybe he really does have a problem. I personally do not drink but that’s just because i don’t really care too much for it. I’ll have a drink here and there but that’s about it. Sorry for the super long post!