Hopefully not.
No, why would he be doing that? Plus he is dead.
No.
It is 'Snape', and no, he is not.
No, they broke up after he cheated on her with Princess Leia.
Professor Snape is single
Professor Snape is single.
His name is Snape.
No, Hermione would never cheat Snape's tests or the tests of any other teacher. How could you suggest such a thing?
Well, the books are quite misleading and you don't find out until the near-end but yes ("Sanpe") Snape is on Dumbledore's side
He acts like he's a deatheater, but he's really working for the order.
Definitely not. Bellatrix hates Snape and is suspicious of his loyalty to Voldemort. Plus he is a lowly half-blood.
Do you mean DOES? Because the answer to the is no. Professor Snape really never tells Harry, but Harry sees Snape's memories and figures it out. This, of course, is after Snape was killed.