Justin Bieber tweets out a sweet pic of himself alongside Avalanna Routh, aka Mrs. Bieber, after receiving word that she passed away.

“Just got the worst news ever. One of the greatest spirits I have ever known is gone,” the 18-year-old singer wrote. “Please pray for her family and for her. RIP Avalanna. I love you.”

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Avalanna stole Justin‘s heart back in February when they first met after he flew the cancer-stricken fan and her mother to NYC for an early Valentine’s Day date, where they played board games and snacked on cupcakes and candy.

Our thoughts go out to Justin and Avalanna‘s family.