Keep in mind that everyone who is about to go through a divorce finalization will experience a lot of emotions that cloud judgment. Did your problems start as a result of you getting upset when she stopped being emotionally available?
Right now she needs time to process. This might not have any reflection upon that way she feels about you, but it will if you smother her at all during this time. She will appreciate it more if you can step back, realize that she is finalizing something huge in her life, and offer support from a distance if that is what she is looking for. Women are different and process emotions differently. She's probably being hit with a ton of stress right now and just needs some personal space to sort all the feelings out. If you really care for her, show her that it's all about her right now. Leave yourself out of it, except to be there when she needs it. If she's dropped communication, mirror her. Maybe send a quick text or something similar to let her know that you understand how hard this must be for her even if she's glad to get away, and that you are there when and if she needs you. Then leave it at that.
Life with Divorce: http://www.lifewithdivorce.com
A personal blog dedicated to sharing my experiences, lessons learned, and advice on navigating through life after separation and divorce.