The speaker wants a new relationship but feels afraid and emotionally hurt because of a previous one. She tells the new person that trust will take time and asks whether they can be patient. The repeated question, โHow you gonna fix it?โ, shows her uncertainty and desire for reassurance, though she also suggests that healing may eventually come.
The lyrics use injury as a metaphor for emotional pain: a โwoundโ and a โfirst aid kitโ make heartbreak sound like something that needs care. Saying her heart is โmissing some piecesโ compares it to an incomplete puzzle, suggesting that she feels unable to trust or feel whole. โActions speak louder than wordsโ means that promises are not enough; she needs the new person to show, through behavior, that they are trustworthy.
There is a tension between asking someone else to โfixโ her heart and recognizing that recovery takes time. The song does not make clear whether the new relationship will succeed or whether the other person can truly heal her. Its ending offers hopeโpain will pass and joy may followโbut this sounds like encouragement, not a guarantee. The speaker may be beginning to believe that healing is possible, even while she still feels damaged.