My mentally ill ex husband, who kept a heroin and serial cheating habit quiet for over a year before I put the pieces together and kicked him out, created a website to make it look like he'd started a successful company and sent it to my friends and family members asking them to forward it to me since I had successfully blocked any form of direct contact with me.
It was pretty sad. You could tell that it was hastily thrown together, probably while he was high/manic. It also resulted in a large chunk of the people he initially sent it to blocking him as well, which likely increased his isolation etc.
Word to the wise, friends, you cannot save people from themselves, no matter how much you want to or how hard you try. Not everyone with mental illness and/or addiction issues will treat you badly, but, if they are not actively pursuing help on their own, there's not much to be done. Life is short, don't set yourself on fire to keep someone else warm.