The poll also found 12% of people broke up with someone because they were obsessed with star signs.
Dirty fingernails, putting on a baby voice and naff tattoos are among the strangest reasons people have split with a partner.
A survey by dating site Seeking - found half ended a relationship because of an 'ick'.
The poll found 12% of people broke up with someone because they were obsessed with star signs, while 11% said they ended it with someone who clapped when a plane landed.