What do you all make of this?

Incredibly disrespectful and a disproportional response to a minor, normal problem. Also your comment that he ‘kicked off like he always does’. My legs would be firmly remaining shut for any man that would disrespect me like that, and clearly has trouble regulating his own emotions and feels appropriate to take it out on me. Absolutely not.

That’s disgusting actually and a huge overreaction on his part. I’d suggest to stop opening your legs, as I’d imagine he benefits from that. He could have just cleaned it, problem solved.

That’s both not okay, and shouldn’t have been said. Personally if my husband had the nerve to say that to me. He wouldn’t be getting sex (therefore my legs aren’t opening). And if that’s all I’m good for. Cool. I’ll stop doing things for YOU in the house. Make sure the kids are fed and you yourself are fed. And don’t do it for him. I’ve done roughly the same thing (before our baby got here) to my husband after an argument. He apologized to me quickly and I admitted I probably could have done without doing what I did, but he also picked up on it and apologized quickly versus not at all. So I’ll take my pettiness and the apology

You have 3 small kids and the first thing he thinks of is that YOU caused the stain? 🥴

It sounds more like he was pissed off with something else and decided to use you as his verbal punching bag.

It also appears there’s way more to unpack here than you have written, and this is probably just one small example in a long line of many, where your husband has shown he has no love/care/respect/kindness towards you.

Would he be willing to go to couples counselling?