Being distracted (even a lot) and actually having ADHD are very different things
How often a partner probably told you that they felt neglected or forgotten, or how often you'd wind up in a rabbit hole and forget that you also have to nourish that relationship.
And my most recent ex was anxious attached. That was rough. I'm far more on the avoidant side, not sure how much of that is upbringing vs adhd.
There's a bunch of books about marriage/relationships with ADHD people. I haven't read any but I should. The lady in this video has written a bunch https://www.youtube.com/watch?v=9pyAfOPGKlI&t=1s