I don’t think she has the brains for that. I believe she is as naive… er innocent as she appears and her 2 braincells believe they’re good friends. She’s a romantic airhead who doesn’t cope with the cynical realism of noble society.
It’s amazing how many single waitresses suddenly have spouses when the wrong kind of customer expresses interest.
Alternatively she could mean that she’s interested in someone else(Secret Bro) without necessarily meaning Bro’s taken the hint yet.