Hi and welcome ShowerGel. Unless your DH is willing to and wants to get help with his alcoholism and change his lifestyle then you must think very seriously if this is a lifestyle that you want. There is so much support now to help alcoholics but this must be done by him.
Something else to think about is, take your time to get to know this other man thoroughly before committing yourself to another relationship. The last thing you need is to jump from the frying pan into the fire.
Good luck. Only you know what you want in life and follow your instincts.
I’m horrified at Steve Witkoff’s remark
Old-fashioned pulley clotheslines



.. Tenants move in, suddenly they have a pet, which no one notices. Best of luck Shower. Where there's a will, there's a way.