I would add, I think it leads to further confusion because there is also the issue that the "bride of fire sequence" serves to further explicate the "three mounts you will ride" said earlier. I posted this in another thread, but it might help show the parallelisms (and lack of): I think ambiguity in interpretation comes in when it is assumed that the "3 mounts you shall ride" all refer to sex or to men. I think only the first "mount to bed" does- her silver taking her literally to bed.