Nice update. I like the device of having the potions make Harry emotional so that he and Severus can make quick progress--if Severus can keep his temper. ;-)
"Harry has been plighted " I think you wanted "plagued" rather than "plighted."
"He ought it to Dumbledore" I think you meant "owed it to"
Author's Response: Hello thanks for your review and I am happy that you like the idea with the potions. Our Harry is so stubborn he would not talk otherwise, making dear Mr Snape mad :) Even more than usual ^_^
And thanks for pointing out the mistakes... I read and reread, but both words exist and the spelling check did not work. Mmmh, so bad of me, have to dig out my grammar once again! I'll try to fix it ^_^