Liars Anonymous Community Group
A support group to provide those with a compulsive addiction to lie a place to share hope, strength and courage with others like them; solve our common problem and help others with a compulsion to lie. We aren't alone!
It sounds like she is struggling to trust again and needs some reassurance from you. If you have lied about anything since then, it re-shatters the trust that was so difficult to rebuild and compounds the issue. If she is lashing out at you, she is in pain. If she keeps bringing up the past, she is clearly still hurt by it. Ask yourself if she is worth the work to endure until she can trust you again.
Maybe it's time for counseling, if you are not already in it.