Yeah, that 'phone thing' happened to me tonnes of times. My ex bf always used to say he'd call and often he didn't. I'd recommend the next time he says "I'll phone you later tonight" that you essentially ignore it. Just carry on with your life as if he's not going to call and if he does cool, if not just have fun! Go to bed when you feel like it and be sure to turn your phone off when you do. If he rings after you've gone to sleep tough!
When I guy says he's going to call you after a night out, what he usually means is -
"If I get bored or drunk out of my mind, I'll call to annoy the hell out of you. However, if I'm having a great time you can wait up all night by the phone, just in case I call. Then I can boast about what a great time I had the next day and piss you off."
From my experience anyway.
PS- Bad luck on failing the
(1)Zarathru test. But don't take it too hard,
(2)Zarathru exams are set to such high a standard even authors of the einglish dictionary would probably struggle to pass.
Little tip tho, if you want an easy way to improve your grammer/ spelling just paste your post into Word and spell check it. Works like a charm.