Is It Possible for a 3 year old child to be disrespectful?

In short, my BF called my 3 year old disrespectful. When attempting to tell him he needs to use better wording, he became frustrated with me and told me "either you want the truth about your kids and you want me to help you raise them or you don't!!" Leaving no room for my input and any questions or concerns about his statement. I understand that children at that age can be testy but I find it extremely off-putting to refer to a fucking 3 year old as disrespectful but also to be told when she doesn't listen to him it makes him feel like less than a man because his children listen to him and he never had these problems. He even went as far as saying he can only take so much of this before deciding to walk away. I'm a single mother of 2. Ages 6 & 3. I told him I was breaking up with him because there's no way in hell I'll ever accept being told to sit back and have no opinion about such things as discipline about my kids. What baffles me most is THIS IS THE FIRST TIME THIS HAS HAPPENED WITH MY 3 YEAR OLD. She listens to him more than she listens to me and the ONE fucking time she doesn't....It goes from here to there IMMEDIATELY!

I'm just looking for some input on the views of children ages 3 and below being considered as disrespectful rather than children who become testy to see what they can or can't get away with. I've read a TON on this and age 3 is that age of learning more independence and acceptable/ non-acceptable behavior. My children are well mannered and have discipline!

Am I missing something here?

Vote below to see results!