When writers give their character a cell phone and then make said character's significant other #1 on speed dial. Does no one who writes actually own a cell phone? Number 1 is always voice mail, people!!!
I suppose there may be some carrier somewhere that doesn't preprogram their phones with #1 as voicemail, but for the rest of us in the country - how about you make "Sweetie" #2.
This is very closely followed by writers who think that their readership has never seen a computer and say things like "he moved his fingers across a black square in front of the keyboard" (that would be a touchpad) "he hit it twice over a little picture of a file and a list of documents appeared on the screen" (translation: he opened My Documents).
Probably your reader ordered your book from Amazon with her very own fingertips. Give us a little credit, please!