App won't close Steam OS X

[cclloyd9785]

Most if not all times I'm done with CW3 (Steam version), it won't close.  It will just sit there on the dock with no window open and it says the application is not responding.  I have to force quit it but even then Steam still thinks I'm online until I force quit steam too (cause I can't just close it because it thinks CW3 is still open).  How can I get it to close properly?

I'm on OS X 10.9.2.