**Lovelock** (noun): A situation where two people like each other so intensely that they become unable to communicate effectively. Despite being able to converse easily with anyone else, the fear of rejection causes them to freeze and become mute when interacting with each other.
"Luca and Kelsey had such a strong lovelock that their conversations tragically never made it past small talk."
Or
Neither could see they mirrored each other, confused by a strong connection always pulling them back together - before both pulling back due to lovelock confusion. Often happens time and time again because neither understands they have been in lovelock since they very first met.