BST etiquette am I wrong

[Cody77]

He was the only one to comment he would take it. But not the first. Again, hence my message to him saying I had a lot of interest already. But, as i have to keep repeating myself, and item is not sold until the money exchange happens. I messaged him, let him know of other interested parties, was confirming pricing and things and would have let him know I was waiting on others, but again I never got a response from him until 5 hours after his comment. He never confirmed he was first and I never confirmed he was. He just assumed his comment being on there somehow made him the one who got it. I would have explained it all in messages, but with no response from him before it sold I never got the chance until I saw his message this morning and told him I sold it. Then he became upset and messaged Leon and threatened legal action. At no point did I ever say he was first to want it. He assumed his comment made that clear and then expected it to be his. When I tried to explain he wasn’t the first the claim and I was working out details with others and waiting on confirmation of payment to mark sold (like what it shows in my “derogatory” message to him, he threatened legal action and I blocked him after.