SS Voldamort question

[Tonya Minton]

No: HPFGUIDX 59660

HI all,
 
Something occured to me this last time of re-reading SS.  At the end,
Voldy is inside Quirrell and he dies because Voldy leaves his body.  So
how did Vodly get out of Hogwarts castle and grounds??  Was he a
spirit?? therefore walked out??  Don't you think that DD would have
wanted/tried to catch him??  SOOO what if DD is on the dark side??  Did
he actually help Voldy escape??  While he was saving Harry??  
 
New question:  What about Snape??  in SS Voldy was close to Snape being
inside Quirell and all, so why didn't they talk to each other??
Wouldn't you think that Voldy still thinks that Snape is faithful DE??
Why not have him help Quirrell in trying to get the stone??  But no,
Snape is seen helping keep the stone safe, helping Harry, muttering a
counter curse.......I just cannot buy the fact that Voldy is too dumb to
know that Snape has turned away from the dark side,  OR has he???  
 
Tonya


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