Is it possible for Stephanie Meyers to add a separate lover for Jacob?

Why? He imprinted on Nessie so to him it would feel like 'cheating' on her.

I suppose she COULD have, but then the story wouldn't have worked. But Jacob imprints on Ness in BD, and does actually প্রণয় her. So... my answer is NO. Sorry

No i dont think so, and if she wants Jacob to have a lover then it should be nessie

no!!! he loves renesmee, so theres no use for another lover