Where did he learn it all? (was Re: Severus's memories and schoolyard curses)

[Adriana]

No: HPFGUIDX 150370

Glykonix:

I'm sorry zgirnius to shatter your idyllic image of Grandpa Prince 
holding a job in some shady (Dark Arts connected) enterprise in 
Knockturn Alley, and Grandma Prince cooking up potions at home in 
her kitchen to supplement the household income.
But Eileen herself was a half-blood. That's why Hermione initially 
suspects she was the owner of the book (and at some time she was).
I suspect she was the one to teach young Severus all those curses.
I agree that that was not a simple fight between spouses, but I don't 
think it was because being emotionally affected by her situation she 
was vulnerable to her Muggle husband. (There is a fanfiction "Eileen 
and Tobias"  by white mouse, that does a wonderful job at explaining 
the whole thing.) 

Tonks:
> Did Snape know Bella as a child?  Why do Snape and Bella have such 
> a tense relationship? Does this go back to before DE days?

I highly doubt considering Snape is a half blood, with a half blood 
mother. Bellatrix or the blacks would not have anything in contact 
with that. As a matter of fact i highly doubt many people know snape 
is a half-blood, even among the death eaters. 
And I think their relation is such a tense one because they are DE's. 
They are two of the smartest. Bellatrix is very frustrated that Snape 
who has lived a comfortable life in Hogarts all those years that she 
was going mad in Azkaban is now going to take her place as Voldemorts 
most trusted servant.
The age difference between them also points towards this, since there 
wouldn't have been much going between a teenage girl and a little 
boy. 
But between 2 young adults who are both servants of the dark lord, 
the competition would have been fierce. Once he joined the DE's the 
age difference does not count any more especially since he strived 
to have a high place amongst the death eaters.

Glykonix