In May 2019, Finneas O'Connell shared a photo with his family and girlfriend Claudia Sulewski on Instagram. This post marked the first time Sulewski and Billie Eilish have been seen together on social media (via Elite Daily).
In September 2019, O'Connell shared a picture on Instagram of himself laying on a trampoline with his girlfriend and sister, with the caption, "These are a few of my favorite things. Soon after, Sulewski and Eilish started posting pictures with just each other.
Sulewski attended the 2020 Grammy Awards show with O'Connell and later shared a Getty image to Instagram hugging Eilish. In the caption, she wrote "Ignore the watermarks, your eyes should only be looking at this history-making queen," in honor of the Los Angeles native becoming the youngest person to ever win Album of the Year (via Vogue).
It's clear that these women have a lot of love for each other and have fun together. On New Year's Eve 2020, they attended a Justin Bieber concert together and shared photos to Instagram of the poster they made and if you're a fan of Eilish, you know just how much she loves The Biebs.
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