Does Romeo and Juliet Law, NJ protect an age gap of 4.5 years?

I am 21, she is 17. My birthday is before hers, and I am about 4.5 years older than her. Would a sexual (and emotional) relationship be illegal, and considered statutory rape? I will be turning 22 before she turns 18. Does the Romeo and Juliet Law, in New Jersey, protect me from statutory rape, or any other implied crimes? I know the gap is considered 4 years, but I am slightly over that by a few months. I would not do something illegal, and am not a weird guy. So if I must, I will cut things off immediately. Our age difference is really not a big deal to us, as she is completely mature and down to earth. Thank you for the help!