What is happening with my relationship with porn?

I have been a habitual user of porn throughout my life, watching it around a couple of times every week. In April this year, I met a girl and I fell in love with her. She is a princess. I felt a deep urge that I want her in my life. It's an ongoing effort on my part, and I have a strong belief that with time, honest efforts and patience she will be mine.

Now, with her entry in my life, my relationship with porn has completely changed. I find it deeply repulsive and my brain has stopped telling me to watch it. Like my subconscious mind which used to direct me towards porn has stopped doing so. I feel that watching porn will be cheating on my part, diluting my commitment towards her and distracting me from my journey of becoming a better person for her.

I want to know whether this is normal. I am also unable to understand why my subsconsious mind has stopped directing me towards porn and created a strong repulsion for it.