Why Snape may not be all evil after all

[sladjanast]

No: HPFGUIDX 138390

Hi everyone, 

I have been lurking for years and forgive me if the message does not
exactly fit the form but I'm so excited about something I just
realized that I have to share it. Let me just say first that I'm no
fan of Snape's and believe that he is really a nasty, evil man.
However, upon rereading HBP for the umpth time, look what I noticed: 

"Hating himself, repulsed by what he was doing, Harry forced the
goblet back towards Dumbledore's mouth..."

This is the scene in the cave where Harry's forcing DD to drink what's
left of the potion hiding the horcrux. Fast forward to the moment just
before Snape AKs Dumbledore: 

"Snape gazed for a moment at Dumbledore, and there was revulsion and
hatred etched in the harsh lines of his face."

Harry hating himself vs. hatred etched in Snape's face. 
Harry repulsed vs. Snape's revulsion (etched, etc). 

Don't you think that it is possible that DD only pleded 'Severus'
after already telling him wordlessly someting like 'do what you
promissed you would' or 'remember what we agreed on' just like he made
Harry promisse he would do everything he asked him before they set off
to find the horcrux? Meaning, DD and Snape had a plan we don't know of
yet that included Snape killing DD if he had to. That could explain
Snape's 'DON'T CALL ME A COWARD' etc. 

My appologies if this has already been discussed, it is impossible to
read everything, and I was really excited to spot this. Then again,
maybe it's just nothing... 

Cheers!

Sladjanast