This is a faithful description of an all-too-common condition - I too knew some-one. It's too good to let go by without a word or two about the metre and phrasing. It feels to me as though you settled too hurriedly on the way it scans, shoe-horning the lyric to fit where it doesn't quite feel comfortable, which then draws the listener away from the very deep message. Maybe re-visit the lyric also with this in mind - just as a suggestion, ignore if you wish - in the first line where you write 'down in your mind'- try " 'round, inside your mind' (which also works better I think with the idea of spinning a web) and adjust/shorten/squeeze the delivery to fit the metre - a couple of things like that. I reckon the BPM is perfect and the track is gorgeously sensitive with a great feel of mystery and pathos - you did very well there = warm regards, Nev