jealousy: you can't undertake technical means to outlive your partner.

Peggy’s initial response to this ambition, rooted less in scientific skepticism than in her personal judgments about the quest for immortality, has changed little in the past 20-odd years. Robin, a deep thinker most at home in thought experiments, believes that there is some small chance his brain will be resurrected, that its time in cryopreservation will be merely a brief pause in the course of his life. Peggy finds the quest an act of cosmic selfishness.