Snape and Deathly Hallows?

i really agree that snape was a good person, but his unhappy life made him grow up "tough" if u know wat i mean. i dont really understand y he hated harry so much though. i thought his love for lily would prevail his hate for james, but i guess harry's resemblance towards james made dillusioned snape in thinking harry was "just another potter". but yea, i feel sry for snape, always being misunderstood in everything he ever did. ;(