How to find a girlfriend while married?

Today is the first time in over years I looked at my husband's history on his phone. Why did I? He started working with his brother again who is a terrible influence. So I looked at the history and i saw "HOW TO FIND A GIRLFRIEND WHILE MARRIED". What would you do?? I took a screenshot and saved it to my phone. I just feel sick to my stomach. I shouldn't have looked.