My FIL didn't like the way I dressed to go out with friends

I have 5 kids. One is 4 months. I have been working and taking care of everyone because my husband was in the hospital to finally have a tumor removed and I've been taking care of him during his recovery and working. It's been 2 years since I've been out with friends. I am out right now with my friends and my fil had stopped by to pick something up from my husband. The dress I'm wearing isn't even bad. It's sleeveless and goes a few inches above the knee. He looked at me and looked at my husband and said "You let your women go out like that." I said excuse me and he ignored me and said "She's a wife. And the mother of your 5 kids. I would have a fit if lora(my husband's bonus mom) went out like that. He said "You've cheated on mama like 4x. Dad I'm confident enough in my marriage to know that it doesn't matter what my wife wears. She's faithful to me and will always come home to me. Maybe you should try it sometimes." His dad got so mad but I wanted to cry tears of joy. Would say more but I'm gonna enjoy my first night out in 2 years. And probably give my husband a bj later lmao