It is hard to be open and loving with someone who is so secretive and lies so much.
Trust is one of the cornerstones for any relationship. I am sure you lack of trust in her makes it hard for you to open up with her. Sounds like she has a lot of demons to work through. There honestly is not much you can do to help her but be there when she needs to lean on you emotionally. Until she finds herself, she will not be open to anything. You just need to focus your efforts on yourself and hope for the best. The best being a bright future for yourself with or without her.
“Do you want to be RIGHT or want to be LOVED” “You have to have a life to share a life with someone” “When you stop resisting, you start learning”