I Don't Know What You Want But I Can't Give It Any More

The speaker sounds hurt and exhausted after a relationship has been damaged, apparently by the other person’s involvement with someone else. The repeated line about being unable to give any more sets a firm emotional limit: the speaker still cares, but feels that continued demands or blame are unbearable. The questions suggest an attempt to understand what happened, mixed with anger and disbelief.

“Breaking my heart” expresses deep emotional pain, not literal injury. “Cracking the code” suggests trying to solve a mystery or understand someone’s behavior, while “filling in time” offers a less serious possibility: perhaps the affair meant little. Calling the other person’s return “the scene of the crime” compares the relationship’s painful episode to a place where a wrongdoing occurred. The speaker also objects to being blamed “just because,” implying that responsibility may be unfairly assigned.

The lyrics do not settle exactly what happened or what the other person wants. The repeated questions could be genuine requests for answers, but they may also show frustration: the speaker may feel that no explanation will repair the hurt. The song presents a conflict between wanting clarity and recognizing that one’s emotional capacity has been reached.