Welcome to SR!
During the 2.5 years you were dating, did you attend Alanon meetings? Alanon is a 12 step support system for friends and family of alcoholics, even if the alcoholic is no longer drinking.
We are here to support you too.
I came here looking for answers to fix my alcoholic. I came here looking for reasons for certain behaviors. I came looking for common symptoms and guaranteed solutions.
What I found here, and at my Alanon meetings, was a better solution. A solution that lies within me. I needed to shift my focus from the alcoholic to myself.
Have you considered spending time looking within for answers?
What are you looking for in a relationship?
Is honesty important to you?
Why have you spent 2.5 years in a relationship with someone who does not treat you with honesty, openness and mutual respect?