Leto85, do you mean like there is some sort of hidden trait that causes that particular behaviour? I dont think any of them is grumpy.
Sunset Valley:
Alma Tanti (Female) - Slob, Vegetarian, Hopeless Romantic, Light Sleeper, Athletic
Lane Clementson (Male) - Commitment Issues, Virtuoso, Daredevil, Party Animal, Computer Whiz
Bridgeport:
Addison Rush (Female) - Hydrophobic, Excitable, Artistic
Barrington Webb (Male) - Party Animal, Hopeless Romantic, Athletic
Twinbrook:
Mark Stamp (Male) - Flirty, Couch Potato, Childish, Commitment Issues, Computer Whiz
Carrie Post (Female) - Flirty, Loner, Dislikes Children, Grumpy, Light Sleeper
Carry posts, lol.