simple past tense and past participle of obsess
"She was obsessed with finding the perfect gift for her friend's birthday party last week."
having or showing excessive or compulsive concern with something
"became more and more haunted by the stupid riddle"
"was absolutely obsessed with the girl"
"got no help from his wife who was preoccupied with the children"
"he was taken up in worry for the old woman"
Intensely preoccupied with or by a given topic or emotion; driven by a specified obsession.
"After watching every episode of that show, I became obsessed with finding out who the real killer was."