SING HER A SONG
Preferably a love song and that’s if you have the perfect voice, not the type that keeps reminding her of her long-suffering and how broke you are.
TAKE HER SIGHT-SEEING WHILE HOLDING HANDS
Going out on a walk or stroll while holding her hands just reminds her that you are proud of her. You are indirectly letting her know that she deserves to be happy, whether money or no money.