While on the Acela train to Washington on Thursday, Lindsay and Sam "had a quiet fight" reports Page Six.
Lohan spent most of the time complaining about her staff and told Ronson, "I do what's good for you, not what's best for both of us."
She was "whining incessantly and Samantha was trying to deflect it. When Lindsay would get up, Samantha would sigh and put her sweatshirt hood back up."
At one point, Lindsay was overheard telling Sam, "Don't (bleeping) lie to me!"
We don't know how Sam deals with Lindsay 24/7, but we commend her for it. Maybe a 'break' from each other isn't such a bad idea at this point. But for all we know, Lindsay will go straight again and throw everyone off.