Mrs Woo, it is a very dangerous sign when someone puts their hands around your neck as it can be a precursor to a much more serious attack.
Please google a domestic violence help line and talk to them. They will tell you why you should be very careful and they'll also help you put all this in perspective.
This guy knows he only has to spin you a line, tell you he loves you and you will cave. How many times do you think he's used that line about preferring larger women? He probably deliberately targets women who have problems with their body image.
Can you please block him again and leave him blocked? He has physically attacked you and it's very dangerous for you now.