Why Does Dumbledore Trust Snape?

I don't know what to believe. His portrait is hanging in the Headmasters Office, which usually means that they are dead. Not that I want him to be, because I definately do not! But it is the most logical explination.

Somehow i dont think dumbledores dead i think maybe if they can transfer the body or smt or just a plan or is it reall or.............. I DONT KNOW

I have many thoughts, but this is what i think happened...

I think that since Dumbledore knew what Malfoy was up to, Dumby and snape made the unbreakable vow for snape to kill dumby when the time came. So when Dumby saw malfoy comming, he froze Harry so he wouldn't do anything drastic. Then snape came and Dumby used occlumency to tell snape what to do next. I also think that Dumby was using his blood in the cave because he knew he would die soon anyway.

I am really sad about Dumby's death and I hope that there might be some way that he could really be alive.

i hope hes still alive, u know pull a gandalf, but i hate snape n e way

Of course because there is a plan between DD and Snape. Someone said and i am beginning to really think it may be a possibility that Snape is trusted by DD because directly after the deaths of James and Lilly, Sanpe came to DD and confessed his past (telling Voldemort the prophesy) and at that time he could have taken the unbreakable vow to DD that he would never... (hurt Harry or go against the wishes of DD or something) this would explain some of the actions of both.-

snape is not bad. The fact is why would dumbledore bed for his life. He is a brave man who faced Voldermort and didnt waver, but he begs when he is facing snape. I DONT THINK SO. another fact. snape could have killed harry after he killed dumbledore, when he was running to leave with malfoy. But he didn't, he wouldnt let malfoy fight him either, in fact he gives harry advice. 'Close your mind, and dont speak your spells' or something like that. Snape cant be bad, in fact i believe HE SAVED HARRY WHEN HE WAS A BABY.

snape is not evil. for one thing he could have killed Hermione, Luna and Flitwick, but he didnt. He could have also killed Harry. but instead he chose to educate him, he told him to close his mind and not speak his spells, he also wouldnt let Malfoy hurt harry either. and i know he killed Dumbledore, but i think there is something to that, SINCE WHEN DOES DUMBLEDORE BEG FOR HIS LIFE. he has faced the worst man in the world. in He who must not be named and he didnt beg for his life then so why would he do it to little old snape. I beleive snape is good and i also think that he saved harry the night his parents died.

Well Snape is a wizard, and dumbledore is smart inof not to pick bad wizards!!!!!