Remember the storyline a year or so ago when Michelle discovered that Ryan was not her birth son but the son of some other couple whose son had got mixed up with hers at the hospital!!!
Why doesn't this boy feature in the street anymore? Afterall if he is her real birth son surely he would appear from time to time. Not that Michelle is seen too often with her other son Ryan either, in fact sometimes it is as if the single parent hasn't a care in the world, working late hours in the pub then making out with some boyfriend or other. I bet there are lots of parents, single and otherwise, who wish that their kids could become so conveniently invisible.