no need for that entire sub event. you set Drawbridge.Open to 1 and then check if it's 1. No need to check if it's 1, you already knows its 1. On E pressed will only trigger once, if you are worried about spamming the 'E' key, just add Drawbridge.Open not equal to 1 in the condition.
as to how how to add text.. (you should use spritefonts - download plugin SpriteFont+ and the program GiveYourFontsMonoSpace)
-on your Text or Spritefont object, put the Fade behavior
-add an action that has Drawbridge Spawn another object.. and that object should be the text.
-set the Text to whatever you need it to be.
-make sure the fade behavior (on the text) is set to Active At Start and Destroy on fadeout.
-set the Fadeout or Wait value to be able as long as your drawbridge going down which looks to be just over 2 seconds.
Fade in 0
Fade out 0.25
or adjust as you like