Alvin, this sounds like "three strikes and you're out" (or she should be if what you say is accurate).  As for me, I wouldn't be giving her even that much rope.  I know it's hard to exercise "self control", but we hobbyists just can't be putting up with all this kinda' #@!&.  If we do, all we get is just MORE.

 There are exceptions, of course.  I went to see an agency gal yesterday.  I was out in the parking lot getting the old "stall".  They knew I was "none too pleased" about it, neither.  My wait was half an hour.  Then, I threatened to leave and the agency gave me her room number REAL QUICK.  In this particular case, she turned out to be more than worth the wait.  I almost certainly will see her, again.  Perhaps now that she knows that I'm worth it too, maybe she won't pull that stuff again.  My guess however is that she likes to "stylishly" keep men waiting, because she feels this helps give her "the upper hand".  If that turns out to be the case, she's gonna find that I'll just leave for GOOD, next time.  Just too many punctual "fish in the sea".