An issue of integrity to Jehovah's laws is involved here. So by no means would it be proper quietly to submit to rape, as that would be consenting to fornication. Sex relations by mutual agreement between two persons not married to each other. According to the Society's definitions, these two terms are opposite in meaning. One cannot be the other.
Fornication indicates mutual agreement.
It does not involve force, intimidation, etc. When force or intimidation are involved, it becomes rape. Most would think it is the rapist. The Watchtower evidently thinks it is the victim. Often coupled with the fear is confusion and uncertainty.