ex parte is when someone sends correspondence to the court, ie judge, without copying all parties involved in the case.
Did you, IM, send copies to all the other parties in this case?
If yes, congratulations you did this correctly.
If no, then you did this incorrectly. You broke the laws of civil procedure, you broke decorum, you broke policy, you broke baby attorney law 101. In essence, You, IM, we’re in the wrong.