Yes, it appears they had a relationship. I hate that historians have minimized that. I love the chemistry too. I agree, in a room filled with people, they seem to be only ones and really know each other. They see the other person.
Check out this book. It not typed out like a typical book. It’s “how she intended them to be read.”
Emily Dickinson’s Poems: As She Preserved Them https://www.amazon.com/dp/0674737962/ref=cm_sw_r_cp_api_glt_fabc_NR9E5XWPJVD5K7SN4G49
Here's the link to the Canadian amazon for the book as it's in stock there and I'm also Canadian and it defaulted to the .ca : https://www.amazon.ca/Emily-Dickinsons-Poems-Preserved-Them/dp/0674737962