Is Hermione a mother-figure?/Does Snape despise Wormtail?

[grace701]

No: HPFGUIDX 53772

My friend, whom I recently bought PoA as a birthday present, has 
made an analysis.  She says that Hermione is like a mother to Harry 
and Ron.  I told her I don't see that.  She broke it down for me:
"Yeah sometimes... she tells them that they are not to do this and 
not to do that... she helps out in a motherly way that's all.  I am 
not saying that she is trying to be their mother, just trying to 
help them out to do good things and not get themselves in trouble."

So what do you guys think?  I really can't make a decision.  She 
does seem motherly, but I can't help but think of Bossy!Hermione.  
Is it because she's an only child?  

Now about Snape.  I remember that Snape doesn't like Sirius, James 
and Lupin since Hogwarts, but I don't recall him ever saying he 
didn't like Pettigrew.  Are there any references to him saying that 
he didn't get along with Pettigrew?  Or didn't like him?  If he 
didn't, I'm started to suspect that maybe Pettigrew was part of the 
Death Eaters a little bit more than a year.  James, Sirius, and 
Lupin knew someone was passing secrets for a year (did Lily know as 
well?), but was he passing secrets even longer than that.

Greicy, who still hasn't received her PoA book from her neighbor :(