Suffering from depression. Situation.

Hi, I am a 1.5 years married woman. it was a love marriage for us with courtship period of 10 years. Being into this relationship was always good although fights and arguments were part of it but not regular like a normal couple . Still after marriage things have become different. I always feel like my heart is pumping out. Have been into fights with my partner so many times in just 1.5 years. According to my partner I am always at fault. My ways of talking doing things are always wrong. I have started feeling that I am such a wrong person. Because every fight every argument leads to this conclusion only. In my relationship my partner is the one who always manages to dominate by getting angry.I can't take this pain in my heart and head any more. Feel like crying all the time and now I have started feeling that I took a wrong decision in my life. Please help me overcome this situation.