Years ago, when Adam was more junior, he was on a desk that dealt almost exclusively in “options.” If you think a particular stock is going to rise in the future, you simply make a bet, a “call option,” allowing you to buy that stock at a predetermined price at a future date. He had explained this to Amy, in the context of their relationship. They could both take out a “call option” on each other, if they felt their love was likely to grow, but they didn’t currently have the emotional bandwidth to commit to each other.