They were waiting for the bus when suddenly, to her surprise, he stepped closer and planted a kiss on her while she was trying to defend her position. He did not do it out of desire, but to annoy her: they had been friends all their lives, and he did not actually see her that way.
Why did he want to irritate her like that? Precisely because their relationship was a tug-of-war in which they constantly tried to match wits.
The twisted thing was that behind all that theatre lay Love. Not the anxious love that desire brings with it, but the kind that would simply set all the chatter aside and melt into a warm embrace.