A new study says that you might be right if you ever felt that someone was snooping on your email account or watching your movements.
Sloane Burke at East Carolina University in Greenville, North Carolina, and her colleagues surveyed over 800 students and found that a third of female respondents had broken into their partner's emails on more than one occasion.
And although men were less likely to break into their partner's email accounts, they were more likely to use hidden cameras, GPS devices, and spyware to monitor their partner's whereabouts and activities, reports New Scientist.
Thrirty four percent females said they had broken into their partner's email more than once, whereas only 14 percent of men admitted doing the same.
The survey also showed that women were more likely than men to check their partner's Facebook activities and cellphone records.
However, 3 percent of men responding to the survey admitted to hiding a camera in their partner's room, while 5 percent used online cellphone tracking software to monitor their lover's location.
"Only a small fraction of men used GPS technology in this way, but we were still shocked," said Burke.
Only a small number of men and even fewer women said they had resorted to spyware.