This guy is not a good match for you or likely anyone right now. He is manipulating and mean. Your family might well accept your choice of husband-but his will not accept you if you show interest and then reject their faith.
Do you have family? With a good education, I encourage you to stay in a community that you are familiar with. You will get more respect in a respectable Muslim family that JW family. JWs would discourage your children from education.
Where are you from?