[PaulK]

If you study this picture: https://www.google.com/search?q=AMF+Apollo+16+sailboat&client=safari&rls=en&sxsrf=ACYBGNRHN4vvMsqMWthZhs1rq0Ihh327Gw:1581386506669&tbm=isch&source=iu&ictx=1&fir=kJAB05x7CD4EBM%3A%2CxKmrXwlO6EiP8M%2C_&vet=1&usg=AI4_-kS9KnNhkLiH_yX0UoA265UTvcdWgw&sa=X&ved=2ahUKEwj43e3ns8jnAhXNxVkKHXh4CSMQ9QEwAHoECAoQBA#imgrc=_v4igEi05qJzaM
it shows that the jib (and therefore the roller-furler) does not go through the bow roller, but attaches to the tang a little way back from the roller. Other pictures of rigged Apollo 16’s show the same relationship.
The diagram on Sailboatdata shows this same setup, PLUS what looks like your other “forestay” going further forward – perhaps to your roller at the bow. https://sailboatdata.com/sailboat/apollo-16 Hard to say why it would be like that. Perhaps to hold up the mast when the jib wasn’t hoisted? Can you attach some pictures so we can see what you’re dealing with?