5 Gnarly Habits People Find Most Annoying About Their Partner, According To Research

Can you love your partner, and put up with these gnarly habits?

Last updated on Mar 08, 2025

Man has annoying partner. Mark Farias | Unsplash
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No matter how much you love your partner, there are probably one or two — okay, maybe four or five — gnarly habits they do that drive you up the wall. One-third of people in a relationship consider their other half to be the "most annoying person they know" because of their infuriating habits, research has found.

Marriage is often an exercise in tolerating whatever habits annoy you about your spouse. Still, there are scientific reasons that some pet peeves and bad habits feel like nails on the chalkboard of relationships, while other behaviors register as less offensive. 

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Here are the gnarly habits people find most annoying about their partner:

1. The way you chew

Neuroscientists suspect that some people are enraged by the sound of other people’s chewing, slurping, and other unpleasant sound-making because their brains are especially sensitive to those noises. The condition is known as misophonia and it may affect as much as 20 percent of the population.

What separates individuals who are reactive about chewing from those who are fine with it might come down to differences in their frontal lobes, one study suggests. Brain scans have also shown that the frontal lobe and the anterior insular cortex show increased activity when people have misophonia. That’s the good news.

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The bad news is that telling your spouse that they hate your chewing because their brain is broken is probably not going to help.

RELATED: 15 Relationship Red Flags You Should Never, Ever Ignore

2. Looking at your phone

Small Habits People Find Most Annoying About Their Partner, According To Research antoniodiaz / Shutterstock

People who seem more into their phones than their spouses are going to suffer many dinner table arguments and possibly relationship problems. Phubbing, or phone snubbing, depletes marital satisfaction and can lead to depression, studies suggest.

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Multiple studies have shown that having a phone on the table makes people feel less connected and compromises the quality of conversation. Conversely, conversations without smartphones present are consistently rated higher in quality. 

Besides, looking at your phone too much conveys to your partner that the quality of interaction does not matter at the moment. Who wouldn’t be miffed?

RELATED: If You Do These 6 Things On A First Date, Don't Expect A Second

3. Bragging about yourself

Braggers tend to do it to either impress others or get sympathy from them, and they underestimate how much this may be a turn-off for other people, research shows. Although this particular study focused on social media bragging, other studies have found that when people brag in person, it similarly conveys a lack of empathy and an inability to read the room.

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Who wants to hang out with that guy? Not your partner.

4. Spending money irresponsibly

Small Habits People Find Most Annoying About Their Partner, According To Research Prostock-studio / Shutterstock

People who thought their partners were bad with money feel less committed in their relationships and report a lower sense of well-being, one study shows. Researchers believe that this reaction has less to do with money and more to do with what money symbolizes — power and control.

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Although financial conflict can cause big problems in relationships, other research argues that money only plays a small role in breakups compared to other issues, like dissatisfaction and a lack of compatibility. Overall, coming home with an unnecessary, new pair of sneakers is mostly just annoying and can be a big pet peeve for some people.

RELATED: If You Do These 6 Things On A First Date, Don't Expect A Second

5. Keeping score in the relationship

Competitive couples who keep score tend to have less happy relationships than couples who roll with the punches, studies suggest. Psychologists caution against “bank-account relationships”, in which couples track their wins and compromises because it conveys a lack of trust about how much effort they expect their partners to put in. That can make dealing with a sore loser understandably insulting and irritating.

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Simply put, being a bad teammate is the most annoying thing married people can do to their partners. “When people are in it for the long term, they are often willing to make sacrifices and view themselves as a team,” Thomas Bradbury, a psychology professor who co-directs the Relationship Institute at UCLA, said in a statement. “They both are.”

RELATED: The Worst Relationship Habit — And 3 Ways To Break It

Lauren Vinopal is a freelance journalist who writes about health and science. She is a staff writer for MEL Magazine and has appeared in MTV News, Vice, GQ, and more.