"Eastside Coast" tells the story of moving to New York City and the emotional struggle of encountering an ex-lover who has moved on. The lyrics convey a need for composure despite lingering feelings, depicting the bittersweet experience of witnessing the former partner's happiness with someone else. The song encapsulates the journey of letting go, finding strength amidst heartbreak, and navigating the complexities of unrequited love against the backdrop of the East Coast.more