I understand how you feel about being a liar. Acting "as if" I never took as lying, I took it as practice for whom I was becoming. It does take practice and I cannot imagine having to do it while under the same roof. Have you watched the TED talk about faking it till you become it and power positions to boost self-esteem? They really helped me. I will see if I can find their specific titles and speaker's names.
M:34 XW:34 Together: 10y Living: 9y Married: 7y Son:6 Son:4 Separated: 12/28/13 Piecing: 5/2/14 Separated 2nd: 10/16/14 W filed, but pulled it: 11/5/14 papers served: 1/27/15 D final: 3/6/15