Orko and Dree Elle also seem to have a romantic interest in each other. This is confirmed by the fact that they showed their faces to each other, which in Trollan society is akin to engagement.
Besides the Filmation series, Dree Elle also appears in issue #9 of the MOTU Star Comics series. When she visits Orko on Eternia, there is an attack by the Evil Horde. During the attack, she's seemingly crushed by debris and disappears. This causes Orko to let himself to be possessed by the Hate Stones to avenge her, but He-Man convinces him to leave the stones. It is later revealed that Montork, who saw the battle, brought Dree Elle to Trolla to heal her, and she returns safe and sound.