"The more unpredictable the pattern, the stronger the craving!" Psychological explanation for why frequent texting is an attraction killer.

"In other words, we are never strongly addicted to things we can consume at high frequency, but rather to things we can never get enough of — particularly when we can’t figure out the exact pattern of when to reliably expect them. A craving, in this sense, is a negative surprisal episode triggered by a prediction error. The more unpredictable the pattern, the stronger the craving!"

https://www.psychologytoday.com/blog/culture-mind-and-brain/201610/addicted-your-phone-science-has-good-news