Sorry you find yourself in this situation. Fact is that you're acting honorably while your W is being in her selfish phase. It's nothing about you.
So my question is...why do you feel compelled to still bail her out? Something as simple as a light bulb should be done by her. You don't keep enabling her.
Is she still living at home? If so, then I would suggest confronting her about her accusations and hitting her with a truth dart.
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.