I never told my girlfriend I fixed the dishwasher 6 months ago and she gets happy everytime I wash the dishes.
Why do you have to keep it a secret from your girlfriend?
I didn't, I just forgot to mention it.
You should tell her the truth about it being fixed. It is nice you offer to do the dishes for her even if it is done by machine. It is better to tell her it is fixed instead of her finding out and getting angry.
I need some leverage. It's okay if she gets mad at me, I want her to feel my pain.
No, it's not cool to lie like that. You wouldn't want her to like to you, right?