The song "Love Don't Let Me Go" by Marshmello featuring Demi Lovato and watt explores themes of struggle, inner demons, and the desire for love and support. The lyrics depict a sense of drowning or feeling overwhelmed by personal challenges and internal conflicts, symbolized by being "head underwater." The desire to escape these struggles is expressed through the plea for love to "save me from my demons" and the admission of being unable to handle them alone.

The lines "And I know, I know, I know it's fading out" and "Lost my religion, I'm losing my self-control" suggest a loss of faith and the feeling of losing control over one's life. The narrator acknowledges that things are changing or fading away, but there is a determination to keep fighting until the end, represented by the symbol of the "burning candle." The mention of being "best of friends" could imply a sense of longing for a deeper connection or the realization that the relationship has changed.

The repetition of the phrase "anymore" in the post-chorus and bridge emphasizes the feeling of uncertainty and confusion. There is a search for personal identity and beliefs as the narrator admits, "I don't know what I believe in." This reflects an internal struggle to find meaning and purpose in life, possibly heightened by the presence of personal demons.

Overall, the song portrays a plea for love and support to overcome personal struggles and demons. It touches on themes of self-doubt, loss, and the need for external help to navigate through challenging times.