Megan Fox shared a vague post about "dishonesty" on Super Bowl Sunday.
She also got rid of a lot of pictures of Machine Gun Kelly, who was her fiance.
After a few hours, the actress from "Jennifer's Body" turned off her Instagram account.
The next Sunday, she went back to talk about "false news stories."
She said that a "third party" wasn't getting in the way of her relationship.
On Tuesday, a source told PEOPLE that Fox was changing her story about what had happened.
The insider said she thought there was cheating, but there didn't seem to be any.
The source said that she "wishes she hadn't made everything so public."
The insider said, "It wouldn't be surprising if they were back together again by the end of the week."