She's the star of the new romance Five Feet Apart.
But Haley Lu Richardson opened up about her real life love story with fiancé Brett Dier while sitting down for a drink on Busy Tonight Monday.
Actress - Question - Whim - Hostess - Busy
The 24-year-old actress revealed how she popped the question on a whim, telling hostess Busy Philipps and her co-star Cole Sprouse that 'nothing was planned.'
'I just asked,' she explained. 'Neither of us are like crazy romantic people, so nothing was planned.
'He - Pizza - Joke - Shia - LaBeouf
'He was sitting there eating a pizza and he was telling me a joke that Shia LaBeouf had said in an interview, and he was like pretending to be Shia LaBeouf explaining this joke and for some reason I just cut him off and was like, "Wanna marry me?"'