So I wouldn't normally be looking for advice but I'm genuinely stumped as to how to proceed here and very interested to get a wider consensus.
I have a friendship that is, with my full knowledge and participation, completely one-sided. It is with somebody who is very mentally ill and we have been friends for over 20 years, since college. He is never mean or unkind or obnoxious, just an absolute drain because of how anxious, paranoid and needy he is.
He has done his level best to seek psychiatric care but once he receives it his entire focus is on getting out of hospital - never, ever on getting better.
A big feature of his illness is reassurance-seeking which at this point I refuse to do, beyond basic decency. He is insatiable on this issue. He will latch onto an unfounded fear and ask over and over if whatever worst case scenario related to it is going to happen. There have been a few incidents of psychosis too, when the anxiety got out of control.
I have supported him endlessly over the years and am categorically his only friend. I've sat in hospital with him, I've marked his achievements and milestone birthdays with him. I've taken literally thousands of phone calls. His family are abusive and backwards, and largely responsible for him being the way he is. He has unintentionally pushed away everyone else by his neediness, it's genuinely shocking. I have managed it by putting good boundaries in place but none of my other friends/partner (who are all very nice) can tolerate him. I've stopped trying to widen his circle because he would invariably latch on to a friend of mine and begin treating them immediately as his therapist which understandably never goes down well...
Around Halloween he asked me my opinion on something that his doctor said to him about him. It was 100% insightful and correct. Lacking any self knowledge, he disagreed, and asked me, twice, what I thought. I very gently said I agreed with the doctor and explained why. I saw him fall apart in that moment as he tried to conceal a panic attack (also a constant issue).
Following this, he didn't speak to me for 5 months, and I gave him his space. I was glad of the break. He is allergic to learning or self growth because he cannot look at the truth about himself. It is too painful and he won't do the work. I have accepted this about him.
He emailed me the other day with a lie about why he hasn't been in contact (changed phone and lost my number - completely untrue, and we've half a dozen lines of contact).
I've ignored it so far. I'm not angry, just full of pity. And tired. I can't be fake or pretend with him. I'm busy with work, partner, children and health issues. Do I restore contact or just let it go? I've never gotten anything from this relationship, but not every relationship is satisfying and enjoyable. Your opinions are welcome.