Romeo-1020 is a Mark 11 Clockwork Cherub.
Romeo-1020 was originally a clerk working for the Department of Departments, part of the Crew of the Copper-Colored Cupids' Intelligence Institute. Because of the Romeo and Juliet connection, the ever-cheeky Juliet-178 picked him as her pretend-boyfriend when she decided to confuse the rest of the Crew and their (actually quite correct) belief that Clockwork Cherubs were aromantic by nature.
This became a problem after Juliet duplicated herself into the hundreds of Sisters of Juliet, as all the copies insisted on dating Romeo too and there was only one of him. Though initially grateful at the attention, Romeo began to second-guess himself when each and every Juliet insister on taking him to the same, identical movie date. After the ensuing feud (both between Romeo and the Juliets, and among the Juliets themselves) caused chaos throughout the Cupid Homeworld, the Cupid Parliament exiled Romeo and the Sisters to an asteroid in Dimension-1579.
Behind the scenes
Romeo-1020 only ever appeared in 2019's Incident Report C179B – “Of Romeos and Juliets”.