If he did love Lily, he would desire revenge against ... We know from Slughorn that both Lily and Snape excelled at potions, so, mudblood or not, Severus would undoubtedly hold much respect ...

It seems highly unlikely that such a person would never use a potion to get what he wants. We've seen Severus Snape give Barty Crouch Jr., Veritaserum 1 and make Wolfsbane for Professor Lupin ...

Severus Snape is often accused of being overly obsessed with Lily Potter in Harry Potter, but two details in his story hint that he is judged somewhat unfairly. Of course, it can't be denied that ...