In John Seely's Oxford A–Z of grammar and punctuation, he gave the following sentence as an example of a complex sentence:
She told him that she did not play again for over a week.
'She told him' is the main clause and 'she did not play again for over a week' is the subordinate clause, according to him. My question is how this subordinate clause is dependent on the main clause? To me, the main clause feels dependent and the subordinate one seems independent. What am I doing wrong?