if you disagree after a serious attempt then ask a stronger player or computer.
I thought I did. I also put it in Fritz, and Qxc6 is the move Fritz made, but black still trashes white. The queen gets captured 9 moves later. Any ways, Qh5 obviously wasn't a safe square.
your questions are good ones. White was probably hoping for a nice easy game with few challenges and a quick exchange of queens.
Ne5 is based on ideas to block the e-file and try to post a piece actively. It also allows the diagonal to be blocked with Nd3.
the player was FIDE 2100 so not an idiot tactically. if he doesnt take something like a hanging piece examine the capture and ask,"What is black's response?" Ill give you a hint, the queen is captured. Qh5 is the only safe square.
from your questions it seems you are looking at the game superficially. i really liked ...b6 because it instantly creates some strategical and tactical problems for white to solve. Compare the moves in the game of a strong master to yours. If you see a game between strong players assume that the moves are correct tactically. if you disagree after a serious attempt then ask a stronger player or computer.