Husband told me he wants to see other ppl while married

So yesterday my husband confessed to me that he feel rules are just made up and he doesn't see why being with other women would hinder our marriage 😱 oh I was so angry. I even told my 14 yr old because he came in the room to ask if everything was ok. My husband told him that if a girl doesn't show him affection to get another one. Oh and then he acts like all this is normal and ask if we have any laundry cus he was going to do laundry. My stomach is turning and I seriously can't eat (and I'm nursing our 6 month old) we have 3 children. How could he say this. He said he needed time away from me because I seemed very upset around him "duh! You told me 5/14/19 that you cheated 15 yrs ago, and I found a notebook saying that if I love you I would have threesomes with you! 😤 I've been trying to move past all this but then this came up yesterday. I let the kids know that they will have to be good role models to show their sister what a good man is supposed to be because dad and I will not last.

I live in North Carolina and he is medically retired, I don't know my rights. We have been married for 15 yrs. together for 17 (half of our lives pretty much)

My stomach has been turning and I can't eat. I keep using the bathroom too my system is cleaning itself out because I'm so nervous. Never thought this would happen to me. Never imagined he would be the one to hurt me this bad. Not just me but out Children.

Anyone know what rights I have? I'm scared to divorce and be broke and not be able to maintain.