apparently (fairly sure i saw this on Austin's tumblr), jaxin told Austin he was going to propose to his girlfriend, and knew Austin was thinking of proposing to gielle, so jaxin asked Austin not to make it public if he did propose, because he wanted his own proposal to be noticed.
then Austin proposed to gielle, of course saying yes, and in the heat of the moment, he tweeted that he proposed etc., and then jaxin started sending him messages (i'd rather not quote, cos i can't remember them 100%). and basically jaxin got superpissed at Austin, and then Austin got kicked out of/left the band.
love both of them though, and gielle is pre hot too. just sayin'.
Austin Carlile and Gielle got married, although their marriage has been rocked by issues of infidelity.
She cheated on him.
As of September 2012, he is 25 years old.