Dave worked hard because he wanted to know what his wife was thinking and feeling.  He put effort into listening to her  and this lead to him understanding her better.  Both of them found something in this. What did they obtain?
compassion friendships satisfaction
satisfaction
by sharing the feelings in your heart with your spouse, you can ... thinking, also known as "cognition" is a process that occurs in our heads.
know what his wife was thinking and feeling.