Sections of the travelling support turned on the manager when he swapped centre-backs - Gerald Cid replacing Andy O'Brien - 13 minutes from the end when the Whites trailed 1-0 and were desperately trying to rescue a point.
And Lee explained: "I know it must have looked strange to our travelling supporters and I can fully understand that. But they weren't fully aware of all the events.
"At that point we were looking to bring on Kevin Davies to add a little more impetus to our second half performance. But it was impossible because we'd lost Jlloyd and, unfortunately, Andy O'Brien had come over to the bench complaining about stiffness in his hamstrings. We were concerned that it might turn out to be more serious that just a strain."
O'Brien, preferred to Cid when he was given his first Premiership start following his £1.2m transfer from Portsmouth, admitted he was feeling the pace after spending almost an entire season on the sidelines at his former club.
"I had cramp 10 minutes before I went off," he said. "I only played three games last season and, with the pace of the Premier League and working hard on my fitness, it was a combination of the two."