Bradley Cooper allegedly dumped Suki Waterhouse because she "spent Valentine's Day away" from him.
The 40-year-old actor, who recently split from the 23-year-old model after two years of dating, reportedly ended their relationship after she decided to fly to Austin, Texas with friends instead of celebrating the romantic holiday with him in New York City.
A source also told the New York Post's Page Six that the 'Silver Linings Playbook' actor also felt "she wasn't supportive of his acting career" while he was starring in the 'Elephant Man' on Broadway from November until February 21.
It was recently claimed the former couple had been discussing marriage shortly before their split.
Another insider said: "Suki says she's been warming him up to the idea of marriage and he's starting to get excited about it.
"It's up to Bradley to pop the question, of course, but she hopes it happens soon."
Bradley previously admitted he couldn't wait to settle down and start a family.
He said: "I would love to be a father one day. I'm sorry my father won't be around to see his grandchildren, but he knows fatherhood was something I was looking forward to. That's my next big step in life."