You are angry simply because you haven't read the User Guide and don't understand how to use Logic Pro X....
When the main window doesn't open.... Load the project and then press Cmd + 1 to reopen the main window... or use the entry under the View menu option in LPX's menu bar
To save yourself having to do this.. when you want to close/quit and save a project, press Option + Cmd + W or use the close project entry in the Logic Pro X menu bar under File...and follow the prompts.. to save or not.. and this will also close all open Plugin windows...
http://help.apple.com/logicpro/mac/10/#lgcpce0e7a31