Crh4878, thanks for your kind encouragement. I must admit it has been great fun trying to figure out the lines of the song .
Yes it had occured to me lately as well that "dont stay away" is Bowie also referring to his son (and himself sumultaneously), whom he wishes to get custody of. Then "come out to play" is a message to Angie, lets get on with our separation agreement. "come out to play" also being a pun, castigating her/their? behaviour in this as childish.
"you'll meet a stranger some night" - suggests a sinister encounter.
"dead or alive" - as in wanted dead or alive (as well as is the relationship dead or alive?). The couple are being hunted by the press.
We live for just these twenty years
Do we have to die for the fifty more?