Have you received any referrals to women's support groups? They can be a much needed source of moral support. I'm unclear why what to tell your parents or not tell your parents weighs so heavily on you?
What you write about your husband being the love of your life and a wonderful father isn't far fetched. Battered women tend to have their abuser placed so far up on a pedastal they become blinded to facts.

He laid hands on you. Severely enough to wind up in a holding cell. Serious enough for the DA to get involved.

Yet, you wonder about your parents. :\

A life no longer walking on eggshells is worth it. That's for you to discover.

It can take a victim 7-8 tries before breaking free from the roller coaster. You're worth it.