A bizarre end to the game saw Trotters defender Abdoulaye Meite pushing his own goalkeeper, Jussi Jaaskelainen, in the chest after a heated verbal exchange.
But boss Lee refused to condemn the pair.
He said: "I saw it as a sign of how committed my players are - it was an illustration of their commitment.
"That was two teams in a difficult position. At times there was a lack of confidence but there was no lack of commitment.
"It's understandable the position we are in but it was an improvement from our last game at Birmingham and that's what I am looking for."