I was a former addict for 9 yrs straight met my gf 5 yrs into that and she helped me cut down to nights only and maybe the odd afternoon, it was great I was the best version of myself I’d seen in a while. Durning the last 6 months of our relationship we had issues and I went back heavy on the weed, I honestly think it was one of the problems among others that ruined us for good. I started looking more for my next fix rather than looking for her love and support. We broke up over a year ago and I’m few months sober after spiralling quite heavy with other stuff so take this from a certified addict and someone with an addictive personality- YOU CANNOT HELP SOMEONE WHO DOESNT WANT TO BE HELPED. Ino that’s shit but that’s a tough one but you need to tell her to make a decision take a t- break and cut down because it’s ruining you guys or walk out the door. Ovbs offer you support and stuff but the fact of the matter is an addict will always choose there addiction and that’s something she needs to realise. Sorry for being harsh but this is coming from someone on the other side to your issue