^Yeah, you can't blame him for that, especially if you also believe in the Snape loved Lily theory; not sure if I do though:/. I think that Snape is still good though, and might be helpful to Harry in his own bitter nasty way; he might even protect him from Voldemort if the time comes, maybe dying doing so(though I obviously don't want him to die). I know it seems a bit far-fetched, but the whole scene where Snape is fleeing from the school after killing Dumbledore and Harry is chasing him made me think. It seemed that Snape's telling Harry that he would be blocked again and again till he learned how to close his mind seemed almost like a lesson to me more than anything. Maybe it's just me wanting Snape to be good and to help Harry vanquish Voldemort, but that is what I think.

If we believe in that Snape loved Lily-theory - and why not believe in it - I think it must be a sheer torture to him to see Lily´s eyes looking at him from James´s face.

There was this reluctant teacher/student pair. I believe Snape still tried to teach Harry something because of his promise to Dumbledore, if for nothing else. If not for those eyes ...

Snape could have teached Harry loads more, if there wasn´t that ancient hatred, which is probably originated from the Marauders. He looked at Harry and he saw James(+Lily), his face showed disgust because of that. How could Harry have liked a teacher who loathes him.

Hatred breeds hatred, Harry begun to loathe Severus as well. It is hard to learn anything from someone you hate, so Harry didn´t learn well when he knew it was Snape teaching.

Judging by the fact how much he learned from the Prince when he didn´t know who it was, there was nothing wrong with the teaching. I bet Harry would have been far better in potions if they would have had even neutral relations. The way they were, he didn´t learn even the most important thing, occlumency, properly.

He has it somewhere there, and hopefully after that one last lesson Harry is finally able to use it. I´m not sure whether he can calm down enough to use it on Snape, though, but ...

Also Sirius´s example affected Harry´s opinions. When he saw a grown man he loved like a father to almost duel with a teacher he hated, that must have only strengthened his negative feelings towards Snape.

They have a lot in common, though. I don´t think they can ever be friends, but they know that much about each other´s childhood, that I think some day they might at least respect each other the way Lupin and Severus do.

I don't think that Snape and Harry can ever be friends or even really friendly. Harry could be upset because Snape hated him from the begining. I know that I would hate someone who hated me before I knew who they were. Also -don't kill me- if snape does turn out to be evil, who is the reason that Voldemort is dead? Who? Harry (and Lily but let me make my point). So that could be another reason why things are tense. On Snapes behalf, I agree that Snape could be treating Harry so badly as a reaction to how badly he was bullied as a child. Those kinds of things still rankle him. Just some thoughts on the no-go between Snape and Harry.

Snape loves Harry as he loved Lilly. He knows Harry is the chosen one who will enact revenge on LV for killing Lilly. Consider the nature of the detentions, they were all designed to educate Harry. The glimpse into the Pensieve had the same design. The chase scene in HBP could have been ended quickly with a Stupify, but was not. Harry was no match for Snape, so how could he tackle LV? Harry learned a lot from that scene. He learned to use his mind as opposed to reacting through emotion. All these teachings will aid Harry in the final battle and Snape knows this.

I'm not a fan of the Snape-loves-Lily theory as I really don't think he had any feelings for her. I've said it before (I think in the first discussion topic, maybe?) that you wouldn't call someone you liked a racial slur, which is what mudblood is in the wizarding world. That goes beyond hair-pulling and eye-poking.

Harry is Snape's scapegoat. Because James isn't around to rub in his success at becoming a teacher, thus having power over people, he must do it in the next best way, by attacking James's son. It's a despicable revenge because it's only revenge by proxy but in Snape's eyes, he's getting even. I do, however, think that his animosty is so strong because of his strong resemblence to James. Snape is seeing James enter Hogwarts for a second time and this time round, Snape has the upper hand and he's going to utilize that. He's going to preemptively strike in order to keep that upper hand. Harry could sense that this man hated him even before they said two words to each other. Not a great foot to start out on but Harry tried not to let Snape get to him as best as he can manage. I think Snape also attacks Harry out of fear as well. He's afraid that Harry is going to be just like his father that he's trying to quash it out of him but he's also moulding Harry to do just that. Just as Voldemort made the prophecy come true, Snape is making Harry out to be just like James in his own eyes. Severus is still stuck in grade school and can't move beyond his childhood hatred.

i think in a way Harry like his father before him is everything that Severus wanted to be. i mean all teenagers want to fit it and severus dosnt really fit in i think that comes from his past.

That said the releationship with Severus and Harry was never going to be like Harry and Lupin because they hated each other from the first glance! and it is goingg to be worse after HBP

Such an excellent opportunity to use what I've learned in psychology! LOL. It's the confirmation bias. We tend to believe things that confirm our perceptions and beliefs. If Snape believed that Harry was just like his father, he would seek out information that confirmed this and ignore or rationalize information that went against those beliefs.

As for the relationship between Harry and Snape getting worse, there's no doubt about that. But I believe that once Harry realizes Snape is working for his side, that they might learn to be civil to each other. That is to say, if they're given the chance before one of them dies.

Snape does hate James, it's true, but he also loved Lily (at least I believe he did, that she was the woman of his life). Don't forget that Harry has Lily's eyes and there's a part of her inside him. I think Snape is primarily ruled by hate when he looks at Harry, but that there's also a soft part there that keeps him from doing anything really extreme to him. Just a thought.

THANK YOU!

But I also agree with Dru when it comes to teaching. Snape's a smart guy and talented wizard (who could do with some lessons in pedagogics). Harry could really use him as an information pool. But for that to happen, both would have to swallow a lot of pride.
Second, Snape is the only person, next to the Dursleys and maybe Umbridge, who set Harry boundaries and won't just let him be the super-hero-who-can-do-whatever-he-wants-without-the-consequences. So, it's only natural that Harry doesn't particularily like him, even withtout the James-Snape-storyline. I think it was Book 3 when it first started to really bug me, that Dumbeldore & Co just let him be. Yes, he's got a tough life and a lot on his hands, but if you get everything you want and hardly ever see the conseqeunces of your actions, it inflates your head...and that's not exactly a helpfull character trait, is it?