Paratrooper Arbër Xhaja has revealed the person who sent the drone for Heidi and Romeo. While being invited to a Skype connection at the 'Fun Club', he revealed that the drone was an order from a girl who lives in Italy, but did not reveal the girl's identity.
We remember that on that drone it was written:
"Stop masculinity, Romeo Fallco! Heidi opens her eyes"- was read on the placard.
Heidi looked surprised and worried after the drone's arrival, while Romeo re-entered the house after reading it, ignoring what was written on it (lexon here).
After the drone, Heidi said that she was not influenced, but neither were the other residents. While Romeo appeared affected by that drone and remained silent the whole time.