My mom was married and had an affair with another married man,and so i was born. My mom divorced after that and never remarried. Right now I have my biological dad’s last name even though he never divorced his wife. So, do I put that my mom is a divorce woman or never married, her ex was not my dad but i did have his last name for sometime even after her divorce.
Your mom is divorced, so you will put divorced on the FAFSA.
Think of it this way - your mom could have been married say a dozen times between the time you were born and the time you complete the FASFA application. What they are asking about is what is her current, most recent status.