4. When she suspects him of cheating every time he speaks with other women.
Guys get annoyed when women suspect them of cheating when they speak with other women, be it a friend, a classmate, or a coworker. This also includes times when he goes out with them for coffee or a meal. Guys think that they are simply providing an update about their day when they tell their girlfriends about this. If you start suspecting your boyfriend of cheating every time he says something, you risk having fewer things to talk about because he will get tired of telling you everything.