Hi. I have experienced a lot of similar things that have been mentioned.
I’ve been married for 11years. About 4 years my partner used coke at a pub when offered by a friend. Over those years he became very distant. I thought he was suffering with depression as a result of his mother passing a few years prior. I encouraged him to get help and persuaded him to visit a counsellor. He reluctantly agreed but then stopped then one day I came home from work to find him high and drunk and he confessed and told me he had wracked up 20k worth of debt. He told me he was coming clean and wanted to stop and I thought over the past year he had and I saw that he had paid back money he had used but two weeks ago I discovered he was using again in fact that he had never stopped. Initially I think I went into shock then this past few weeks I felt pure rage. He has started visiting local support groups but I don’t even know how or if I can ever believe him again.