Mine can act more insane than any other I've ever met. Examples to follow..
Her: Can you put your clothes away?
Me : Two minutes, I'm just finishing up something
Her : Can't you do it later?
Me : One minute babe, just logging off the PC and I'm on it.
Her : Fine, you don't love me. (stomps away in a mood) .......
I bought her an expensive diner set for Christmas (on top of others gifts). She's been looking at a specific set she loved for months, but couldn't justify the price. She is in charge of buying for the new kitchen whilst I do the rest of the house (raw deal, I know). So good boyfriend that I am, I go and drop £400 on the complete set, soup plates, cups and saucers, teapot, sugar pot, desert plates, the works. Gets her sister to wrap it nicely, stick it under the tree.
Christmas day comes, opens if up, happy, hugs, makes a big deal of it, show everyone, etc. When focus goes off her to other gifts, I get a look saying 'I'll deal with you later'. Wtf? My nut starts turning fast, trying to cover all 3 million angles a specific diner set she wanted could upset her.
Later alone. She thanks me again then have a go at me for spending so much money, not letting her buy it as per agreement, etc. I said, it's Christmas ffs, it's a gift. "Yea yea, but I should have bought it as we agreed" . Ok, give me the money then. She goes quiet and walks away in a huff. So much for me doing a good thing. Now she loves the set but a drama had to be made first. Can't have it any other way.
A month ago in Brussels we went shopping and had lunch. So afterwards we did a little sight seeing. I pulled out the camera to take some pics of us, she refuses to be photographed.
Me : *sighs* What could possibly be wrong now?
Her: I don't have a mirror or make-up on me.
Me : *looks utterly confused* ...... and?
Her : Oh, you want to go show your mother photos of us in Brussels with me looking like a freak?
Me : No, my mother knows what you look like, I want to show everyone photos of us in Brussels?
Her: Not with me looking like this.
Me : *lets it go as it never goes anywhere good*
Another occasion.
Her : What do you think of my new shoes?
Me :*have literally no idea what any of her shoes look like* Yea, it's nice.
Her : It's not new shoes.
Me: *caught red handed, cornered* Oh....
Her: I can dye my hair red, put on 5 stone and you won't notice *storms away in a huff*
I can type hundreds more episodes like this. Let it be said, she is smart, incredibly hard-working and sane 98% of the time. It's just little moments now and again she goes bonkers.