It is good to not keep people waiting on you.
Dee, who is shopping, told her son Eric she will pick him up at 230 pm sharp.
Dee wants to go shopping more.
Dee picks Eric up at 230pm and goes shopping on her own later on.
Dee decides to shop until 330pm and then tells Eric the traffic was really bad.
Eric feels he can trust Dee and that she respects him, and he loves her.
Eric doesn't trust Dee anymore and doesn't drive with her.