Did you have sex with him? Do you love her? An in vivo test of sex differences in jealous interrogations

► Uses a novel method: content-analysis of the syndicated reality program Cheaters. ► Men more likely than women to inquire about sexual aspect of partners' infidelities. ► Women more likely than men to inquire about emotional aspect of partners' infidelities. ► First study to find sex differences in romantic jealousy in vivo. ► Refutes criticism that sex differences in jealousy are methodological artifacts.