No, but I do think the healthiest approach to therapy is to go in hoping that you can work things out, or else come to an understanding that you'd be better apart.
I can see why your husband is upset though. I would have been devastated if my kids didn't seem to like me.
There used to be a great show on years ago called "the house of tiny tearaways"...anyone remember that?
They would get a few families to stay with kids with various issues, such as extremely fussy eaters or there were families were the kids seemed to really dislike one of the parents. The psychologist would work with them and make great strides over the course of the week or so they were there in trying to build the relationship so it's definitely doable and fixable with the right methods.
The doctors name was Dr. Tanya Byron, she has written a few books, not sure if she wrote about how to handle that particular issue but it's worth a look.
Yes I have suggested they spend time together just the two of them
As far as I remember one of the main approaches was for the parent the child liked to really involve the other and not let the other be pushed out.
Our son also has a huge parental preference for me. At times, He actively goes out of his way to tell Daddy not to come near him, hits and kicks him
So with that kind of thing you'd be really nice to your partner and show him a lot of affection etc. in front of your child rather than make a fuss over your child.
I remember one episode where there was a little girl who seemed to really dislike her mother...and when her dad started to do that the little girl was shocked and horrified (bless her 😂) but she seemed to come round in the end.