moop

to be a total fool in love for someone, disregarding all common sense because you are overwhelmed with adoration for this person

"I'm a complete moop for ______. It's embarrassing."

Person 1: Hey, what's up? You look . . . I dunno . . . distracted or sad or something.
Person 2: Oh I'm just mooping over ______. S/he has me spinning around in circles in my head and I can't even think.

"I can't believe I mooped over ____!! S/he is such an asswipe!"