My 2 cents:
(1) A job that depends on tips means constant over the top flattery. Cynically priming the drunks at your bar for extra money is nothing. See: every waitress, bartender, and stripper in the history of the universe.
(2) I'm sure you think your girlfriend is important and you think you're important to her. But she's your
girlfriend. The whole point of a girlfriend is they don't matter. You may even put her ahead of yourself, like a really good boyfriend, but that still means she doesn't matter, since you don't matter either.
She (and you) will only matter when you make like
Marian Paroo, and then she'll be your wife.