This may seem like a weird connection, but sometimes I wonder about this when I see people reacting to Snape and Draco in HBP. Like, where they'll talk about their relationship deteriorating or Draco being ungrateful--whereas to me it sounds like yeah, Draco's going through a bad phase but it never occurs to me that Snape really thinks he hates him or that he really does. He's just going through stuff and Snape, as a parental figure, is going to sometimes bear the brunt of it. It's a sign their relationship is strong, not that it's over, if that makes sense. Since I always compare it in my head to what it must be like watching a teenager make his own mistakes I sometimes wonder if other people would see both situations differently.