A Shot to the Heart
I've loved my husband for five years, but he's never reciprocated my feelings. In fact, on the day after my death, he runs straight into his true love's arms.
During my absence, he sneers and says, "She's up to her old tricks again."
When he receives a call telling him to identify my body, he's excited. He thinks he can see my reaction to having my scheme exposed.
He doesn't know that I'm long dead, though.