Not to mention my girlfriend.
Farnborough is a bit "defence heavy" I'm afraid. If your girlfriend has no special interest in air-to-air missiles and anti-tank ammunition she will not really enjoy herself there... I once took my wife along to Le Bourget many years ago. A mistake I am not going to repeat. And Le Bourget is maybe 50% defence, 40% civilian (10% of that GA) and 10% space technology. Farnborough is 90% defence alone...