Imagine how confusing that could get. This is a hard lesson to learn though. But the heroine can't see her own eyes, face, expressions and we can't tell the reader that she can. We have to change the scene, so we can see the other's reactions. She can't see her own face, how does she know it is soft.
Most good writers use one or two points of view throughout the book.
Yes, there are many exceptions and made usually by well known authors who can afford to get away with it. In a mainstream or single title more viewpoints are allowed but still one must be careful. I like to change the scene to give the other one's viewpoint. Less confusion that way. You can't read one book for point of view, you must read many and study them.