Snape again

[lagattalucianese]

No: HPFGUIDX 146940

> 
> zgirnius:
> 
...
> 
> One thing that I find very odd about the 'Prank' is Young Snape's 
> actions afterwards. He never reveals Lupin's secret (until PoA, a 
> good 15 to 20 years later), which I find very mysterious. I would 
> have expected him to want his revenge on the Marauders for this 
> incident, and what better way than to reveal Lupin's secret to the 
> school, and the wider world? It would have been completely awful for 
> Lupin, of course, but also, I think, for Sirius, since he would of 
> course bear some responsibility for facilitating Snape in his 
> learning of the secret. And he could have done it under an oh-so-
> righteous cover of concern for the safety of his fellow students, 
> yada yada yada.
> 
...
>
La Gatta Lucianese:

Or here's one that's not too far too seek:

We know that Lupin was not happy about the Pensieve incident, and 
neither was Lily, obviously. What about Lupin being the one (since he 
was a prefect that year), either on his own or with Lily's persuasion 
and in her company, going to Dumbledore about what the Marauders were 
doing to Snape.

Dumbledore would, probably, have called Snape in and verified what was 
going on, either in the presence of Lupin or Lupin and Lily or with 
the assurance that he had heard about it from him/them.

This scenario would not only explain Snape's decreased hostility 
toward Lupin, it would also give some motivation to the Prank: Sirius 
would be not only destroying Snape but punishing Lupin for putting an 
end to his jolly fun with Snivellus. James' interference would further 
anger him, and the whole incident could explain the cooler feelings 
amongst the Marauders, and particularly toward Lupin.