Have you seen the movie "My Big Fat Greek Wedding"? Watch it, and replace the pride/importance of being greek that the father feels with being a jw and you will have a pretty good idea of the trials. One exception I can think of, in the movie they commit fornication. As a jw, she would be disfellowshipped. Also they are dating without a chaperone. She will be marked as bad association because she is spiritually weak. Sorry. In the movie the boyfriend says "We're not different species", but that is about how bad it is viewed. If you watch it, you'll see the grief she has to go through.
Best Wishes, Kitten Whiskers