For most of their relationship, Eric avoided paying his due because he knew Alice would pay when he didn't. If he paid only 10 units, she would come up with the other 30. If he didn't feel like driving over to her house then she would come to his. if he didn't wish to break a deadlock after an argument, he could count on her to play the mediator. But he miscalculated just how far he could push Alice. her share of the 40x began to slowly decline, leaven him to make up the shortfall. Only small amounts were at first involved, but they suffered remorseless inflation until the full weight of the relationship came to descend on this delicate shoulders. Alice had in a myriad of ways imply ceased to care, and Eric realized that unless he continued to pump around 30x into the situation, Alice and he would inevitably collide and break up.