The speaker describes a painful relationship marked by lies and selfish behavior. They feel hurt and sad, but refuse to apologize for insulting or detesting the other person. The repeated lines about crying suggest that the pain keeps returning, even as the speaker tries to understand what happened.
Looking through the window may suggest watching from a distance, feeling shut out, or being unable to stop looking back at the relationship; the lyrics do not make its meaning certain. The contrast between โsadโ and โnot sorryโ shows that regret and sorrow are different: the speaker mourns how things ended but does not feel guilty for expressing anger. โForsakenโ means abandoned, so the speaker imagines the other person moving on while they are left alone.
The song can be read as an angry response to betrayal, but its repetition also conveys emotional exhaustion and a cycle of hurt. The speaker says they will try again, which might mean trying to recover or trying again to make sense of the situation. Their firm refusal to apologize sounds defiant, yet the repeated crying makes clear that they are still deeply affected.