Chinese often doesn't spell everything out, and this is something many beginners get hung up on - in the Chinese language, when someone can avoid repeating a word, they do. It's easier to read Chinese if you can let your mind relax and internalize the sweep of the meaning. The compact with the least repetition a sentence is, the better it's written or spoken. In this case, "wanted" is already indicated about 4 times previously in the paragraph, it's not necessary to say it again.