"I shoulda known it from the start / You would tear my world apart / Now I'm broken / Thanks to your toxic heart" Themes & Meaning
: There is a sense of regret for not seeing the warning signs sooner, acknowledging that the relationship was doomed by the other person's "toxic heart". Logan Michael - Toxic Heart
: Central to the track is the internal struggle of feeling unlovable or "not enough" after being abandoned. "I shoulda known it from the start /