I wouldn't call what you did was bad behavior
at all. You went there as a concerned parent,
entitled to the safety and well being of your
children. You did what any concerned responsible
mother would do for their own kids, especially
since his behavior concerning porn was in
question.
Do you feel deep down what did out of
concern for your kids was right? If so,
no need not hang ur head down or feel
sorry. You remained strong and brought
ur kids back into a healthy environment.
I still say, stay strong.