We're women so we do this all the time: make the call we're just not meant to.
He said he'd call, he hasn't called .. why not send a friendly text to discuss that horrible accident that was on news yesterday? What of forward a funny joke we've heard? Or for the really ballsy types, we'll just ask him why he hasn't called.
The conversation (depending on whether or not he answers your call) may go something like this:
You (overly chirpy): Hiiiiii!
Him (a little over enthusiastic): Oh hi!
You (wondering if his phone doesn't have caller ID and even then, why he hasn't committed your number to memory as you have his): I was just checking up on you ...
Him (never missing a bit): And I was just thinking about you ..
You (forgetting that you'd felt slighted only 3 seconds ago): Oh that's so sweet! Would you like to come over for dinner later on? I'm cooking your favourite!
Him: Isn't that grand! You're just what the doctor ordered! I'm at work now, how about I call you when I'm done?
You (gushing and blushing): Great! Let's talk then!
Then at midnight on a week night when you finally come to terms with the fact that he's not calling and you've gone through all the silly excuses you made for him, you tuck in to bed feeling sorry for yourself.
There are a thousand books and 15,000 articles out there that will described to you exactly why you must not even look at your phone in a manner likely to suggest that your interested in calling. And they all make the world of sense. But none of them are any help to a girl seated home alone on a night when there's no power with only her laptop for company whose battery is running dangerously low ...