Hi ZoeG, welcome to the forum. Everyone here has a loved one with an addiction in one way or another. There are also people in recovery offering support and advice.
I’m no expert although my son is currently in early recovery from alcohol and cocaine addictions.
He thinks he should just be able to give it up, but cocaine is a very addictive drug, it leaves you wanting more.
Read Danman83 posts, he too believed he could take or leave it, but every day is a battle for people in recovery.
I personally think he should quit before it gets out of hand as it can wreck a family’s/partner’s life.
It WILL become an issue for both of you. The CA fellowship groups are a great support, they are the only ones who have helped my son stop and stay clean.
The situation can change very quickly, he could run into debt, lose his job. Please try to get him to nip it in the bud before this happens.
Help and support is there if he’s will to accept he has a problem.
Good luck and keep in touch here.
Lx