Symptoms of ADHD or verbal abuse

**Subject: Need Advice: ADHD or Verbal Abuse?**

Hi everyone,

I'm reaching out because I'm struggling to understand if what I'm experiencing is verbal abuse or just symptoms of ADHD. I'm in a relationship with someone who has ADHD, but they're not currently medicated. They often have meltdowns or rants that can go on for hours. While these outbursts aren't always directed at me, they usually end up that way because I tend to go silent, likely due to past trauma from dealing with verbally abusive people.

I'm also visually impaired, and during one of these rants, he told me that I bring less to the relationship because of this. This really hurt, and it makes me question the nature of our interactions. I'm not trying to minimize the struggles people with ADHD face, but it feels like he's using his condition as an excuse for behavior that seems manipulative. Is it possible for someone to use their disability in this way?

There have been several instances where the police were called because of his behavior. He used to live with his parents but ended up homeless after repeatedly yelling at them through the basement floor over issues like access to his workshop. He seems to believe that his disability gives him more leeway to act however he wants.

One particular incident that stands out was when he started ranting at me because someone asked him to wear shoes in a store. That night, we broke up. He has since contacted me, calling me unfair and ableist for not respecting that he has ADHD and "can't help it." He's also blamed me for causing him so much stress during a work project we did together that he ended up yelling at his parents. He has called me demeaning names, like "piece of shit," and has even called my mother a "cunt" and other derogatory terms. He also thinks I'm verbally abusing him because I go silent during his outbursts, which he interprets as me shutting him out or being dismissive. 

He has also said that we are so good together and that he loves me. But now, I feel like these statements might just be manipulative tactics typical of an abuser, and I'm not sure if I can get past that feeling. At the same time, I worry that it might actually be his disability affecting his behavior, and I don't want to be unfair to him if that's the case. This has left me feeling guilty and confused because I do care about him, but he thinks I don't. He has also mentioned experiencing dysphoria, which seems to add another layer to his distress.

I've read about the definition of verbal abuse, but I'm still unsure if this is what I'm experiencing. Is it possible that I'm mistaking his ADHD symptoms for something more harmful? How do I differentiate between the two? What should I do in this situation?

Any advice or similar experiences would be greatly appreciated.

Thank you.