Are There Ways to Sue mistresses

[magnics]

i have the same inquiry po, i want to file complaint for my husband's mistress. they have an almost 11 year old child. i thought wala na sila after years i discovered this, i thought she learned her lesson already and she's just after the support of the child (which my husband is giving regularly) kaya lang recently i found out that she still clings to my husband and still hope na magiging sila forever, even introduce to her friends na boyfriend nya. the kabit is a public teacher, i really want to teach her a lesson na for all the anxiety it caused me. do you think it's really high time i do this? file an administrative case for immoral conduct?