Being unfaithful to a spouse, including pornography, is adultery. The first person pronoun is used in his statement. The more salient point for the faith communities with a common theological persuasion is do they still assert all sins (past, present, and future) are forgiven when he had his conversion experience or do they reject him as a bona fide Christian. This seems a typical tragic case where a false sense of security did not acknowledge that grave sins separate one from God at the real risk of eternal darkness where there will be weeping and gnashing of teeth.
I was making fun of the way he expressed himself. Instead of taking the blame, he used “became” to make it seem it’s like something done to him, not a choice he made. He is making it clear he hasn’t yet come to terms with his responsibility for his actions.