Heres the thing.... Call, dont call its your choice and you have to live and die with it.... Its not going to change the reality:
The bigger issue is trying to have a relationship with someone in a cult. The odds are 10,000 to 1 against you... Maybe 1,000,000 to 1 maybe more..... You simply cannot expect happiness from this relationship. Its not going to end well no matter what you do.
You mentioned another poster who found real love... I think you mean cognac. Go back through her posts. Its been like 8 or 9 years of heart break for her with a JW guy.... Shes just now coming out of it.... Its misery. Im stuck with a witness wife. Complete hell somedays.... Over and over these stories play out on this forum.... Your not different. Your jw girl isn't a special snowflake.. She in cult that teachs her to hate people like you. Shes already pulled away. Even if you temporarily convince her to have a relationship with you it wont end well.
you also mention specifically that she is black.... This leads me to assume you are not, other wise why bring it up. Mixed relationahips/marriages are not all uncommon but also present challenges in themselves...
This is a disater waiting to happen. You wont listen. You will try anyway. We will be here for you when you need to talk again....