Not sure if this is the correct forum for this, but here goes. In my romance-thriller I've brought my protagonists to the point where at last they realize and confess their love for one another. I give them three days of blissfully making up for lost time. But there's an issue between them. There's a principle/cause/belief system that she adheres to, but he, due to bad childhood experiences, rejects. He's aware of her adherence, but in his own mind minimizes the extent of it. She's aware of his antipathy and plays down the strength of her adherence out of love for him. But on the morning of the fourth day he discovers how serious she is about this principle/cause/belief system and is upset. They fight. She leaves (to do something connected to the principle/cause/belief system) and when she returns, he's gone. When they see each other the next day, she's prepared to offer an accommodation. But he doesn't want to talk about it. He goes all flat and laconic and will only say things like, "That's up to you" and "You've made your decision." She's convinced it's all over between them. Then, just before he leaves for a business appointment, he says, "And I've made my decision. Soon as this meeting's over, I'm calling [my on-again, off-again old girlfriend] and breaking it off with her for good." Ambiguity! Cliffhanger! (Or that's my intention.) As I'm writing it so far, the next chapter takes place two months later. It will soon become clear that my protagonists are more in love than before. My question is, how soon do I have to let the reader know how they worked it out and what motivated his behaviour in the previous chapter? There's a logical place for it three or so chapters further in, but is that leaving the reader hanging too long? What is spoon-feeding the reader, and what would be jerking the reader out of the story because he or she is saying "What the hell happened back then?"