Top five reasons for why he hasnt called.
1. You are not his priority.
2. Because he is into you and he does not want to look desperate
3. The big C word (commitment) Is not ready for commitment
4. Man Child syndrome
5. Confirmed Bachelor. He is just for fun, do not expect more from him.
The biggest rules for dating is do not sleep with him on the first date, do not drink more than two drinks and do not mention sex, marriage or kids!