The lyrics of the song highlight the emotional turmoil and inner conflict that the man is experiencing. He admits that he still thinks about his ex "every night and day" and that he "can't help but wonder" if she is thinking of him too. He acknowledges that he should be moving on but finds himself unable to do so, as his heart is still tied to her.
The chorus emphasizes the man's inability to return the love that someone else is offering him. He sings, "I can't love you back, even though you're trying hard" and "I'm still holding on to the ghost of what we had." This suggests that he is not emotionally available for a new relationship and is still consumed by his feelings for his ex-partner.
Throughout the song, the man expresses his longing for the past and his desire to be with his ex again. He sings, "I wish I could go back and undo all the things we did" and "I wish I could hold you in my arms again." This suggests that he regrets the breakup and is struggling to accept the reality of their separation.
Overall, "I Can't Love You Back" is a poignant song about heartbreak, loss, and the challenges of moving on from a past relationship. It captures the emotional turmoil and vulnerability of someone who is still grappling with the aftermath of a breakup and is unable to find love again.