I'd say be honest. Let him know that he gave you the impression he was going to check up with you about saturday and why you had expected that to happen. Also let him know how him not doing so made you feel. I think you should iron out with him that you have trust issues because of past relationships, and that you would like him to respect that and put a whole lot of effort into making good on what he says. Remember, he isn't your previous partners, and he deserves the benefit of the doubt, but you also have the right to express your expectations and ask if he can meet them. Hopefully he will understand why that upset you so much and be more considerate in the future.
Also, ignoring him is definitely not a good way to go. Two wrongs don't make a right, and making him feel as slighted as you felt will only make the situation worse.