obsessively

/əbˈsɛsɪvli/
adverb
  1. In a way that shows you cannot stop thinking about something or doing something, often more than is healthy or normal.
    • She checked her phone obsessively every few minutes, waiting for a reply.
    • He cleaned his desk obsessively, arranging every pen at the same angle.
    • The fans followed the band obsessively, attending every concert on the tour.