Should I divorce him? this is sick...

So I'm against porn (don't care if you agree) and found out my husband was watching it. Big fight, me in lots of pain, blah, blah, blah. THEN I find out that the days he watched porn he googled pics of his exes AND my FUCKING SISTER. He has done this every three days since my daughter was born AND did it the day after she was born in the fucking hospital! Don't know whether or not he masturbates. It's just her instagram. But I found out he's been going to her page regularly for 2 fucking years. I'm so sick to my stomach. I packed my bags and am moving out. What would you do?