Sometimes we want to be more specific about how someone is or how something was done. We can do this by using like to compare the thing to something else.
This snippet has two prepositional phrases that make comparisons.
And we figured someone like that would have a real crush on Julian, who looked and acted like someone in a KidzBop commercial.
And we figured someone like Miss Mawbry would have a real crush on Julian, who looked and acted like a retired Italian opera singer.
And we figured someone like the school's top jock would have a real crush on Julian, who looked and acted like a hot mess.