Re: Can I play my game without Origin being involved?

Quite understandable that you're frustrated with a game that doesn't work :/

Googled a bit and found some more possible solutions to your problem (not that they are particularly fun but they might help):

• (http://segmentnext.com)
  13# Origin Is No Longer Running
  You need a stable connection to play Mass Effect 3. Make sure you have added Mass Effect 3 and Origin to your firewall exceptions list. Disable your anti-virus and forward the ports for the game. You may have to re-install the game and then reboot to fix this issue.
• (http://social.bioware.com/forum/1/topic/344/index/11719356/1)
  Check that the time of your computer is correct and/or reinstall the origin client
• (http://forums.techarena.in/video-games/1455281.htm)
  Reinstall origin.

As you can see most of the solutions that I found seams to be circling around reinstalling the origin client, not that fun but it was what I was able to find.