obsessed(fixated on a single topic or emotion) adjective [UK: əb.ˈsest] [US: əb.ˈsest]I'm obsessed with this melody. = Estoy obsesionado con esta melodía.
preoccupied(concerned with something else, distracted) adjective [UK: priː.ˈɒ.kjʊ.paɪd] [US: pri.ˈɑː.kjə.ˌpaɪd]