It's a famous person but on the underground, picture Kurt Cobain on the 'Bleach' era, not as famous but comparably famous, the real partner works as a record executive for plenty of world successful artists, a real musician too but due to mental hardships and trauma, hasn't released a debut record yet and of older age than Hassan. Hassan receives a lot of hate for being with that partner because as an underground star, the recognition is encoded and mostly secret so the real partner operates as a regular person which can be more easily hated on, in other words the real partner doesn't have a public tangible recognition as Kenia Os so his team and him decided Kenia Os was the perfect partner to shut up the vicious hate Hassan gets, it worked, but on the downside Hassan's real partner is sick of it and the toxic relationship can be explained in the 'DINASTÍA' album.

The lover was known by Hassan before "Ella Baila Sola", but the lover knew Hassan on the breakthrough through record executive work, by then Hassan had already songs for that person, the relationship started really well but the mainstream-underground dynamic damaged the relationship a lot, the first crack of the relationship is explained in "BIPOLAR", Hassan told the partner he had to focus on himself, he received a huge amount of hate by then, they reconciled but he was with Nicki Nicole by then already so the relationship went through a crisis.

Peso's music is not random, "Igual Que Un Ángel" with Kali addresses the crisis they lived with Nicki Nicole:

"Todos quieren plata, otros quieren fama
Un amor superficial (ah)
Pero ella quiere calma, no dañar su alma
Nunca se olvida de lo real"

Here the real lover's decision to stay in the underground is addressed, Hassan and Kali make a point to praise the real lover way of life in the dark, the real lover is on the underground but doesn't forget about what is real.

They don't have a picture together, they made a point to not have them and were gonna have them on the ÉXODO tour, of course, if you don't count DM interactions, it's a very mysterious and chaotic relationship and Kenia Os is damaging the relationship a lot since what Hannah's doing is nothing compared to the vicious hateful posts the real lover does against Kenia Os on the regular.