Whether it is a relationship where one partner has ADHD and one does not, a relationship between two neurotypical people, or relationship between two people with ADHD, it is the same.
Both partners have to show interest and cultivate interest not just the non-partner. If you wish to be pursued, then be sure you are worthy of pursuit. Take care of yourself and keep yourself up.
I don’t think the same high intensity level of attention comes back. His practically being obsessed with me 5 years ago has not returned and I don’t expect it to. That said, the interest is still there for both of us or we wouldn’t be together.