Around 25% of people interviewed confessed to having flirted with someone they should not have in a text message, said the survey of 2,000 people by mobile phone site Recombu.com.
In 2008, Hollywood star Jennifer Aniston was reportedly sent a message from boyfriend John Mayer that read: "That's it - the end."
In April last year, actor Charlie Sheen said adult film star Rachel Olson sent him a text message saying she wanted to end their two-month relationship.
Around 11% of the people interviewed have been asked out on a date by a text message.
The report said professional relationships were not immune, as Tiger Woods' coach Hank Haney also resigned via a text message after six years together.
Hannah Bouckley, editor of site Recombu.com, which carried out the research, said: "It is easier to write a few words and then sent it through a text and avoid confrontation."
