Sorry brother but your relationship with Sue is effectively over.
Read joekerr's great thread on breaks to find out why...
http://www.sosuave.net/forum/showthread.php?t=126471&highlight=breaks
In anycase this happens to just about every guy who makes a woman his sole focus and doesn't make a life for himself outside of her company.
Women are to be a nice addition to your life but never its passion or driving focus.
The driving focus and passion you need to base your life and identity around is something that is 100% unchanging like living a healthy life by being an exercise nut or striving to be good at music you know something unchanging like those things meaning something that is always going to be around and there for you to persue something that can never be taken from you so you never lose your identity and sense of self when a relationship ends because you no longer base your entire self identity around a chick who can leave you or die at any time.
Even though I'm not a Christian a better way of looking at it may be to use a teaching from Christianity.
Ok there is a saying by Christians that Jesus's house ie the church was built on the rock so that when the waves came and washed over it, it remains standing.
While foolish people live in houses made of sand so that when the waves come crashing down the house is washed away with them.
Basically this teaching is saying whatever you trust in should have a solid unshakeable foundation.
So to sum up all I've been trying to say is you need to make your focus and identity based on a solid unchanging foundation and then you'll never have to deal with the feeling of being lost in life ever again when some woman leaves you because you never again made your life based on the unstable uncertain surface that she is but rather something that is unchanging.
Anyway though man for recovery other than telling you this all you can really do is try and get yourself out more and build up small conversations with people to get yourself back in the swing of being social.
You don't have to get too discouraged about early failures as remember you are trying to unwire your brain from being used to talking to one person and that personality for so long as well as repairing deteriorated social skills so it may take some time but as the old saying goes: "Rome wasn't built in a day".