An infatuation that is so intense and obsessive that one's self-control and judgement becomes impaired.

Examples:
Lwaxana chased Captain Picard like a rabbit from one end of the ship to another in tng2x19 "Manhunt" and was only narrowly diverted from her objective when she encountered an attractive bartender on the holodeck.

Aliases:
obsessive infatuation

References:
https://en.wikipedia.org/wiki/Obsessive_love