For example, Rachel is our POV and this is the end of the scene.
"I love you and I'll always love you," Rachel said. Tears filled her eyes and she looked away from Cary.
You insert a double return (as we called it in typewriter days) or you can use asterisks or something fancy like this: §. This shows the break in a scene.
We now pick up the story and we shift POV to Cary.
His body tensed and he started to embrace her. If I forgive her this time, he thought, it will be the same story again. She fails me and makes me feel sorry for her. "Your words mean nothing to me this time," he said.
I like this variation in fiction. I can identify with more than one person. I can "become" both Cary and Rachel.
The third-person variation allows writers to provide
a wider scope to the plot and to character development.