If your partner is better looking than you, they're more likely to cheat
There's never a guarantee your partner will remain faithful, but it looks like there's one sure sign it mightn't last - attractiveness.
A new study at Harvard University has concluded that attractive people are more likely to cheat on their partners because they're more tempted by outside propositions.
"Physical attractiveness predicted greater vulnerability to relationship threats, in this case, relationship alternatives, resulting from poor relationship satisfaction," she wrote.
The study also analysed that men who were deemed especially attractive, were more likely to have a marriage breakdown or shorter relationships.
Dr Christine Ma-Kellams led the probe, which analysed the divorce rates of 238 men based on their perceived handsomeness and according to the British Psychological Society, those who were deemed more attractive had shorter relationships.
The study, which was published in the Personal Relationships journal, said that jealousy of a more-attractive partner is also a factor.
The investigation expanded into Hollywood relationships and the same pattern emerged analysing 130 men based on their looks and found they were just as likely to have a marriage breakdown as their non-famous counterparts.