If you understand how each partner's thinking, then you can find the bridge. Anger and resentment are the two that I see most regularly on the non ADHD side of things. So ADHD partners can practice these skills, and dramatically improve their relationship. If you do these I cherry picked these as some of the most effective communication strategies that you can use.
Many romantic relationships touched by ADHD are marked by misunderstandings and emotional outbursts. Effective communication skills, however, can be learned. Melissa Orlov teaches strategies that will resolve conflict with your partner.