Hi Ka123
Welcome to the Forum, where lots of people are in similar situations to yourself and where you can find lots of really helpful advice.
I am the Mum of an addict (alcohol and cocaine), think they go hand in hand with each other. My Son is in Recovery, but I can appreciate what you are going through with your boyfriend.
The sad thing is, they are all the same, they blame everyone else for what’s wrong in their lives, they lie, steal and I think they only ever think of themselves.
Your Boyfriend will only ever try to get help when and if he wants too. You say about letting it run it’s course, the only thing this addiction will do is ruin his life and yours.
Do his Parents know about his addiction? If you feel like you can talk to them, then I certainly would as he lives with them.
Feel free to chat on here anytime, I always find it really helpful.
Take care.
Dx