In a way yes but no, আপনি might be called a poser and will probably have to try to look mere এমো স্টাইল to prove you're emo. Also এমো স্টাইল isn't about self-harm অথবা being depressed all the time. At first এমো স্টাইল wasn't a culture, it was a type of music.
Depends on what আপনি mean দ্বারা "emo." It originated as an insult to overemothional people, but then evolved into a style of music. So if ur talking about the insult, yes. If you're referring to the সঙ্গীত genre, of course