if you are really so anxious about getting rid of the parasite,
you can adopt drx ideas, but be prepared to suffer a bad
reputation. Others will say you are hard-hearted or born cheap act
class or something like that as now the scnerio is that the guy is
the victim.
if you are not so anxious, just leave it as it is. Ya, the fire
will burn out.
one more idea to add to drx list, you can counter attack, how?
since he pestered your friend right? you can start telling to
everyone you know that this guy kept pestering you and it making
you go crazy,(will be good if you can shed some tears) tell that to
some of his friends, then adopt the ideas from drx list. ppl will
not bad mouth you.
"make yourself look like the victim" he will suffer the bad
reputation for making girls go mad and crazy.
you win. ha ha