Trauma in new relationship

I’ve only dated 2 guys so far in my life. One was an extreme PA, and the other is my new man. My new man is completely different from my ex. He is caring and attentive. However, I feel extremely scared about him being a PA, and feel scared to ever ask. I don’t even want to know if he watches or not- I know it’ll break me if he does. And anytime there’s intimacy, or lack of intimacy, I get scared about porn or being cheated on. I miss the peace from being single. I took a lot of time to heal after my PA and don’t miss him a single drop, but is it a sign im not cut out to be in a relationship?