Hi, I'm sorry to hear what you are going through. It's very sad to hear about both of you. Usually when someone is addicted it takes long to time of therepy / self work to get better.
When we get into relationship with addict it's important to ask what happened to us in our childhood / family that we are in such relationship. I guarantee the addict knows who will enable him /her. Try to work on yourself.
Therapy and this podcast helped me a lot. I selected those as examples as it might be good for you and for tour ex:
https://youtu.be/h7OIgeQscik
https://youtu.be/F2P3qknUN4k
The best prediction of future behavior is past behavior... Sadly.