Yes, it is.
Women's aid have an online chat/contact (towards bottom of the page on this link)
chat.womensaid.org.uk/
You can also phone them, not sure which is fastest.
There's also national domestic violence hotline.
Kids can and do love abusers, kids love unconditionally ABC just want love and acceptance, unfortunately that means they'll also live people who.are abusing their mum or even themselves.
They cannot judge a situation, they do not make decisions - you as the adult judge it and make decisions for them. You cannot take abuse because they seem to be happy with their Dad. They don't know the full.story and even if they're they're not able to make informed, holistic, sensible, safe decisions .. that's why we're here, to do it for them and teach them til they're old enough.
A man who abuses his kids' mother - indirectly abuses them.
She cannot be the best mum and person she is capable of being when she is tense, scared, distressed, depressed, walking on eggshells, upset, hiding things etc. He is directly affecting her happiness and feeling of security and relaxation ..
And that affects her as a mum/parent, no matter how hard she tries.
There is no.duch thing as s man who.id an abusive husband/partner but a great dad ... If he abuses their mum, he is affecting her fundamentally and damaging her ability to be a relaxed, happy, positive, secure, confident parent to get children.