You weren't dating her.

You provided a business woman with your business.

Was this talk after a session?

As far as DiCaprio goes, I don't know what he is like as a man, but I don't see anything fundamentally wrong with a person dating someone 20 years older than they are. Presumably everyone involved is at least 18. Adults who have the prerogative as adults to date who they want to date.

Bottom line, it is the purview of very young people to think foolish things.

You did nothing wrong and I am guessing you provided some insights in that conversation to eurodom she will appreciate years later.