It was the second time this season Robinson has been sent off for a head-butt, but the midfielder has pleaded innocence over the incident.
Subsequently, Robinson will be banned for four matches, ruling him out of the League Two play-offs if Swansea fail to land automatic promotion.
"Andy was wrong for putting himself in that position," said manager Kenny Jackett.
"As you build up a reputation, people will target you and think they can wind you up easily."
Robinson has had a turbulent season at the Vetch, casting doubts over any long-term future with the club.
He was given a three-match ban in November for a dismissal for violent conduct at
While in February, Robinson was warned about future conduct after being found guilty of a public order offence by
Robinson has caused problems for Swansea this season with his temperament a problem for Kenny Jackett.
"There's only one person going to break that cycle and that's him," added Jackett.