@KyleGrams I recently just dealt with someone like this. "Fiends love being fiends" is gospel. They dont want to stop getting high. No amount of hope for them is enough if they're in love with the feeling.
Tolerating always turns to resentment. At first, you call it patience, then love. But what it really is, is self-abandonment. Every time you swallow a boundary, excuse a pattern, or silence your discomfort, something inside you keeps score. And eventually, the bill comes due.