The poor man.  It is just impossible for him to accept that the relationship is over.  I read an article in a magazine the other week that he'd found someone else and started life afresh - but it doesn't look like it.
How hard must it be to accept? I hate to hear about people in so much pain.

I don't mean this in a cheesy way-but I can see him resurfacing somewhere nobody knows him as a blues singer, and a good one. A long way from the Crouch End effect , and the false sense of personal security into which the media fashionistas evidently lulled him.

WHS, in my day job experience it is extremely difficult to get someone pre-emptively sectioned these days. He will have to work this through with whatever assistance he can find on the road. Areligiously I have found that my wayfaring clients ( a la Winterreise, Das KW et al) have had great support from monks and funky nuns (viz: aware of vicissitudes and matters earthily soulful while within their vocation). His may yet be a heroic walk back to whatever. He is after all a man, not a dilettante, and thus fitted out for whatever he is driven to work through.