Editing Jealousy (section)

== Sexual jealousy ==
{{Main|Sexual jealousy}}
[[File:Jealousy.png|thumb|Woman displaying jealousy while imagining her partner with another woman]]
Sexual jealousy may be triggered when a person's partner displays sexual interest in another person.<ref name="BuunkHupka">{{cite journal | last1 = Buunk | first1 = Bram | last2 = Hupka | first2 = Ralph B | year = 1987 | title = Cross-Cultural Differences in the Elicitation of Sexual Jealousy | journal = The Journal of Sexual Research | volume = 23 | pages = 12–22 | doi=10.1080/00224498709551338}}</ref> The feeling of jealousy may be just as powerful if one partner suspects the other is guilty of [[infidelity]]. Fearing that their partner will experience sexual jealousy the person who has been unfaithful may lie about their actions in order to protect their partner. Experts often believe that sexual jealousy is in fact a biological imperative. It may be part of a mechanism by which humans and other animals ensure access to the best reproductive partners.

It seems that male jealousy in heterosexual relationships may be influenced by their female partner's phase in her [[menstrual cycle]]. In the period around and shortly before ovulation, males are found to display more mate-retention tactics, which are linked to jealousy.<ref>{{Cite journal|url = http://www.robertburriss.com/pdfs/burriss_06_ehb.pdf|title = Effects of partner conception risk phase of male perception of dominance in faces|last = Burriss, R., & Little, A.|date = 2006|journal = Evolution and Human Behavior|volume = 27|issue = 4|pages = 297–305|doi = 10.1016/j.evolhumbehav.2006.01.002|bibcode = 2006EHumB..27..297B|access-date = 5 February 2016|archive-date = 5 February 2016|archive-url = https://web.archive.org/web/20160205214604/http://www.robertburriss.com/pdfs/burriss_06_ehb.pdf|url-status = dead}}</ref> Furthermore, a male is more likely to employ mate-retention tactics if their partner shows more interest in other males, which is more likely to occur in the pre-[[ovulation]] phase.<ref>{{Cite journal|pmc = 1690982|title = Changes in women's sexual interest and their partner's mate retention tactics across the menstrual cycle: evidence for shifting conflicts of interest|last = Gangestad, S. W., Thornhill, R., & Garver, C. E.|date = 2002|journal =  Proceedings. Biological Sciences|doi = 10.1098/rspb.2001.1952|pmid = 12028782|volume=269|issue = 1494|pages=975–82}}</ref>