Again, any activity that evokes a lot of dopamine release will make it harder to achieve the same level, and certainly a greater level, of dopamine through a subsequent interaction. So, yes, indeed, many people are addicted to pornography and yes, indeed, many people who regularly indulge in pornography experience challenges in real world romantic interactions.
Andrew Huberman
For more, see Neuroscientist: This Habit Destroys “Man Brain” (Andrew Huberman)