Commentaries:
"Idols" represent what she greatly desired and expended her efforts to possess. As the context shows, what she greatly desired God, her Husband, prohibited. These fickle lusts led Israel into relationships with ways of life other than God's. Her drive for the "excitement" of experiencing some new thing led her to make those other ways her ways. God labels this as adultery because she abandoned Him for them.
Usually what Israel chased after was outside the guidelines God gave in His commands. However, to her His commands always appeared to be denying her pleasure. Hosea, though the earliest of the prophets to connect spiritual idolatry to the sexual sin of adultery, was far from the last, as this verse in Ezekiel suggests.
John W. Ritenbaugh
The Beast and Babylon (Part Seven): How Can Israel Be the Great Whore?
There is a lot of emotion in the word "broken." The marginal reference for it gives "crushed." God says, "I am crushed." This is how He felt in the rejection He received from Israel within this marriage.
The idols represent what she greatly desired, and as the context clearly shows, what she greatly desired, God (her Husband) prohibited.
This "whoring" is their fickle drive. They were always curious about how others did things. They were always ready for excitement in some new thing and ever willing to experience a variety of things. Almost always what she chased after was outside the guidelines that God gave in His commands, but to her His commands always appeared to be denying her pleasure.
John W. Ritenbaugh
Where Is the Beast? (Part Seven)