Well kushey....."I would appreciate it if you would leave me alone," is pretty simple, clear & specific. It's also English and it looks like you have a command of the language. No matter if he said it face to face, via text, phone, email or carrier pigeon, he did say it.
Believe me, it is very safe for you to assume that what it "means" is: He would like you to leave him alone. Quit wasting your time and try to stop being clueless. Get on with your life & perhaps someone who might return the "crush."