Lots of that pseudo-random capitalization going around lately, isn’t there?
In the second sentence, you should not be capitalized. The second is in the first sentence isn’t needed, either.
Death is lonely and looking into getting a pet to cheer him up. He chooses you.
It is possible that you was capitalized in the original for emphasis. Don’t do that. Even when italics aren’t an option (looking at you, Facebook), use all capitals instead for emphasis, not just the first letter of the word.