Otage translates directly to "hostage". It's a strong and evocative word that immediately grabs attention, as it's not commonly found in everyday song lyrics.
In "Si J'étais Le Même," Willy William uses this word metaphorically to express how his feelings are trapped or held captive by a manipulative relationship. He sings, "Mes sentiments en otage j'en étais témoin" (My feelings held hostage, I was a witness to it), conveying a sense of helplessness and emotional imprisonment within the song's narrative.
"Si j'étais le même" is Willy William asking whether love can survive who a past relationship turned him into.
The verses describe getting hurt: old wounds resurfacing, being locked into someone else's version of him, lied to "like a bedside lamp" that never really lit the room. He gave everything and still ended up trapped, his trust ruined by it.
The chorus is the question that comes after all that: "would you still love me if I were the same" — the same guarded, scarred person that experience made him. It's less a declaration than a real doubt, wondering if he can be loved as he actually is now, not as who he was before the damage.