While I am not familiar with HeadSpace, the Open Graph Meta tags added to your site by Jetpack might cause the changes you saw when sharing one of your posts on Facebook.
To remove these Open Graph Tags, please go to Plugins > Add New > Upload in your dashboard, and install and activate this small plugin:
http://i.wpne.ws/LFwn
Once the plugin is activated, Jetpack Open Graph Meta tags will disappear and the descriptions you used in the past should take over.
As per the other warnings mentioned in Facebook Debugger, you’ll need to make changes to your theme or use a Facebook Open Graph plugin to add this information to your site. Jetpack doesn’t add any fb:admins and fb:app_id tags.
When I tried to install the plugin I got this message: The package could not be installed. PCLZIP_ERR_BAD_FORMAT (-10) : Unable to find End of Central Dir Record signature
When I down load the file it downloads as a.php. Could that be the problems its suppose to be a zip.
Here is the file name that downloads: jp-rm-ogtags.php
Head Space 2 is now working. Will this be something I have to worry about it future release of Jetpack?