No. This scene didn't feel weird. If you watched, she first mentioned she want a divorce to save him his career. He didnt know what she was doing for him. I don't know if you are aware, he loved her for 20 years. I don't think he want to be traumatized by separation again.
She hurt him where it hurts the most, of course, he is going to be insane for a few minutes. If you ever had a fight with a friend/spouse/family, you might say something hurtful just to be spiteful. Later you regret saying spiteful things. I.e. like teenages saying "I wish I was never been born" to a parent or some teenages throws expensive electronics because they are mad at their parents but later come to regret.
With that case, he just want her to understand his love language and his love for her. This is such a small scene over to the hate comments. Based on all the hate comments, I literally thought this scene is where he forced her to do the unthinkable on a boat. No he just kissed her and she kicked and scratch him.
