Jason Derulo, Jena Frumes separate 4 months after birth of son
“Jena’s been a superhero in all of this,” Derulo told People magazine back in July, “so I’ve been very, very lucky.” Singer-songwriter Jason Derulo and model Jena Frumes, the mother of his four-month-old son, have separated. The 32-year-old made his announcement on Twitter on Thursday. “Jena and I have decided to part ways,” Derulo tweeted. “She…