I had a tingling feeling that a certain girl I was seeing was using my conversations for validation.

I'd call it narcissism which led me to delete all our conversations on her phone and later never texted her again.

She got mad. I didn't care. I looked at the long term impact on me if I had decided not to.

To rephrase, I made a decision that texting is not something I should be doing. I had heard texting is for logistics, now I knew why it was not for any other thing.

This was not a question, as I can see. It's something you can weigh on and offer advice to.