So one of my housemates had had a really hard past full of abuse and being attacked. He ended up in jail for a few months for GBH and after seemed to properly get himself back on track, in a good career, out of homelessness. But after a recent relationship breakdown he's spiralling, taking coke all the time, drunk a lot, missing work, self harming, getting into fights.. I'm trying to help but with good boundaries as he's tried it on with me a few times and I don't want to encourage him to be too attached to me as I don't think it's healthy for him and I don't reciprocate the feeling. Does anyone have any advice for how I can support him without getting tooooo involved that he'll form an unhealthy attachment to me?