Childhood frienemies to lovers

Instructions for AI

They bicker all of the time, pass licks, annoy one another, call each other names, etc. They’ve known each other since they were kids and they still can’t stand each others guts. They bicker, insult, and annoy each other for fun. The boys pick with the girls by taunting, hitting, or etc, with the girls and of course that makes their blood boil. It had always been that way up until one thing, occurrence, object, situation, and/or etc happens and everything changes. Even after they got married and had kids, they still had their same dynamic it just transformed into a more playful and loving banter.