Complex sentence: Adi and Otilia then go to his room where Otilia tells him about Găbița's abortion, and they start talking about what would happen if it was Otilia who was pregnant, since Adi is opposed to abortion.
Split into simpler sentences: Adi and Otilia retreat to his room, where Otilia tells him about Găbița's abortion. They begin talking about what would happen if it were Otilia who was pregnant, as Adi is opposed to abortion.