Nobody of us really knows, if Roma has left or if he was gone by VV. And we do not know the reasons.
Was he really full in love with Sabina, did he want to stay only together with his friend Mark, who had to go? Was there a fight between VV and Roma? Did Sabina simply leave the country for another job? Did Sabina cheat on Roma when she was out half a week?
All we can do, is simply regret that he is no more in the villa. The good spirit is gone and the sex life, too. Since 8 weeks no sex, is this RealLife?