Wow, there sure are a lot of incidents here, aren't there?
"The death of Sir Danvers was, to his way of thinking, more than paid for by the disappearance of Mr. Hyde." You know, I'd bet Sir Danvers for one would think differently!
And it's all very nice for Dr. Jeckyll, glad to see he's not suffering from a guilty conscience from what he's unleashed or caused to happen or anything. (Yes, that's sarcasm! Just in case you missed it.)
"Tut-tut"? After one friend says he's had a shock (oh my!) and will only live for some few weeks, and declares that his previously almost-inseparable friend is someone he never wants to hear about again? Sheesh. I think that's carrying the stiff upper lip thing a bit far. And while we're on the subject... he has a great shock, and it's going to kill him... in a few weeks? That's... um... okay, whatever!
And back on the subject of Jeckyll... "You must not doubt my friendship, if, y'know, I never speak to you again or let you set foot inside my house. For I shall be an utter hermit, and can't bear to look upon anyone or whatever, woe woe." Good grief. I know the term "emo" is overused, but... well.
And more of the stiff upper lip, as the walkers just walk on when their friend suddenly is seized with horror, despair, etc.... not even stopping at the front of the house to let the servant know he might be ill or something and need help! Yeesh.