I think it’s a really interesting discussion, so thank you for raising it and being so open and honest. I personally see porn and camming/interactive sex work as different things. To me, watching porn is purely a visual stimulus to arouse, whereas with interactions with a sex worker there is an element of seeking a response from another person, and seeking more of an emotional connection.
For me it would completely depend on the relationship I had and the boundaries we had set within that. For me, it’s not about whether I’m enough for that person (as I personally don’t think one person is able to satisfy all of another persons needs, but that’s a whole other debate), but more that if they are doing something without an open and honest discussion about it that comes to an agreement acceptable to both parties.
In regards to porn addiction, I am not a professional/expert, however any form of addiction is classed as a compulsive behaviour. So something becomes an addiction when you start to have less control over it: not being able to go without it; not being able to stop; planning activities around it; it impacting previously enjoyed things/activities etc. Don’t know if that really helps at all, but I think if there is a concern then it is worth speaking to a professional in that field for sure. I listened to a really good podcast last year from someone who had a porn addiction, so may be worth having a look at other media to get a better understanding of it.