Continuity mistake: This mistake appears when a truck rolls by Sara and Jonathan just as Sara is handing her phone number to him. The camera is close on Sara and Jonathan, but when the shot goes wide, you can see Jonathan's feet turn completely around AS the truck is rolling by, and then the next jump cut shows him turning around AFTER the truck rolls by.
Continuity mistake: When Eve and Sara are at the café, the waiter brings her cake for her birthday and leaves with the cash tray. When they're ready to leave, the cash tray is back on the table, where Eve picks up the $5 bill.
Answer: They are engaged and celebrating the day they met each other.