I understand what you are asking. Before marrying my RAH, I was in a relationship that lasted roughly 3 1/2 years. I felt like he just "got" me. He knew me better than anyone else ever had. Problem is, that didn't mean we had a healthy relationship. I left him because he had zero motivation to make a better life for himself. None. Those feelings will fade and eventually you will see more truths.
FYI - it wasn't until years later while attending Al-Anon that I realized he was an alcoholic. You would have thought that 2 DUI's (prior to our relationship) would have helped me see that sooner!! Obviously my picker is broke.