Billie Eilish has sparked concern among fans with her latest Instagram post featuring visible bite marks on her forearms. The 22-year-old singer's 119 million followers expressed worry over the ring of imprints on her arms and a round bruise in a snapshot. Despite sharing a carousel of Fourth of July activities, Billie provided no explanation for the bites and bruises, simply captioning the post with two firework emojis. This comes after she covered Interview magazine and discussed her struggles with power, control, vulnerability, and love in romantic relationships. Fans speculated and inquired about the marks, with some suggesting they may be a show of affection. Billie admitted to having a fear of vulnerability in romantic relationships and a history of being the one to end things, acknowledging the emotional toll it takes.