I'll try to make this as short as possible...

My fiancée wBPD broke off our engagement and ended our relationship after a year plus of living together.  We are still living as a couple, in the same place, same bed, same shared world etc.  We are friendly and still kiss each other goodbye, goodnight and say "I love you" when one of us leaves the other to go somewhere.  Because of the end of the relationship, I am moving out and she's staying for now.  My new place isn't ready yet, so we've basically been carrying on as if not much has changed.  What HAS changed is that I know she's emotionally moved on already, and I definitely haven't.  I don't hear the "babe, boo, etc" anymore.  No more compliments on my looks.  Any touching (rubbing feet, hugging, etc) is done only by me.  I know that she loves me.  Just isn't IN love with me.  The move out won't take more than a couple of trips back and forth, when the time comes next week.  And my nerves are fried and heart wrecked, so I may not be thinking of things totally rationally.

My main question is:  Because of everything I've learned about BPD (from being in love with someone who has it) and read here in this sub as well as others, am I supposed to say goodbye on the last day and just go away?  Is "no contact" the best thing for this woman who I still very much love?  Is it best for me?  If so, what should I expect from her emotionally?  I'm not sure I can endure trying to remain in contact and friends with her anyway, because of the emotional pain I'll go through doing that.  I get nauseous every time I think about my life without her.  I cry daily, just thinking about what I'll soon be saying goodbye to.  She seems fine emotionally.  That's the part that kind of hurts, not that she's intentionally being unempathetic.  No crying to speak of, no second thoughts on her part (at least from what I can see).  If anything, she seems nonchalant about the whole thing.  I am twice her age and know that has a lot to do with my feeling the way I do about the finality of our life together.  

Just could use some help from people who have BPD and would lend me some advice.  Do I go no contact and virtually "disappear" or is there some other way I should handle the breakup?  I really don't want to make things worse.  Losing her/us is bad enough.   Thank you, in advance.