The Colombia international, who had forced the replay by netting the equaliser at Bramall Lane, was hauled off in Tuesday night's FA Cup defeat to the Blades after an hour, and was visibly distressed in the dugout.
|7/4||Fulham are 7/4 with Paddy Power to avoid relegation|
"I have no relationship with the new manager and I think he has been disrespectful to me," Rodallega told Colombian TV show Kick Off.
"He always keeps his forwards on whether or not they are playing well, so I don't know why he has done this to me. It broke my heart.
"I've never gone through a situation like the one on Tuesday in my whole career. I couldn't sleep that night.
"I've had a good career with no acts of indiscipline anywhere. But at that moment I felt rage because I wanted to keep playing."
Fulham are currently bottom of the Premier League table after losing 3-0 to Southampton at the weekend, while Rodallega has failed to net a league goal since January 2013.