I have a very close friend of mine who is battling an addiction and I knew that going back into the friendship. I myself have addiction issues I'm working through so I fully understood what I was getting myself into and also how to not judge or be angry with them about it and try to be there for them however I could.

As we spent more time together I felt as though I was living in nostalgia. Being with them felt good like it used to but the relationship is not the same anymore. I feel I am grieving for them each time we speak or hangout. There are moments where there is a sliver of normalcy; I see the person they were before the addiction began. Then the other side comes in and they are so angry and nasty towards me, sometimes valid other times not so much. I'm wondering how to grieve someone who is still here with me. Or how do I overcome this. My heart breaks for them and I don't know what to do with my emotions on this. Any advice welcome, thanks.