Her love story bites. The artist behind an antisemitic and Hamas-obsessed installation on taxpayer-funded Governors Island had a virtual love affair with a Palestinian dentist in Gaza —  bonding over bizarre “vampire dentist jokes,” she acknowledged online. Rebecca Goyette, whose art sparked outrage when it popped up at a Halloween event over the weekend,  had the strange online romance with a pediatric dentist she identified as Mo’min Zahar starting in April of last year, she wrote in an