Did I just commit to a broker?

Reached out to a broker using right-hand-side section on a street easy listing. Full disclosure: in a rush I didn't read the blurb on street easy, instead assuming that the contact form was for the sellers broker. My fault, 100%. Anyhow, I went to see the unit and was confused to find two brokers present. It took a while to become clear but turned out the first was the street easy rep who it turned out to be a buyers broker and the second was the sellers broker. I didn't particularly like the buyers broker and probably wouldn't have worked with her were it not for my mistake. But, at the same time, I want to be moral and don't want to mess anyone about. If I decided to see this place again, or eventually put in an offer, would I need to use this particular broker?