Demi Lovato has taken to Twitter to express her sadness at the loss of her dog, Buddy. The Skyscraper star shared the puppy with boyfriend Wilmer Valderramma and told her fans that the pair were "devastated" after he died in an accident last weekend. "We are absolutely heartbroken to be writing this but Wilmer and I are devastated to inform you that we lost our little angel Buddy last Sunday. "He was taken from us way too soon in a tragic accident and though I will never know why this had to happen, I do know that God only puts us through situations that we can handle so with that, together we are staying strong." She added that the Buddy was loved by "so many people" and "as small as he was, he made a huge impact in our lives". "He truly was human in a way and we were so blessed to have him in our lives. We ask you that you please respect our privacy while we take this time to grieve and remember the magical moments we spent with our little angel. We will never forget our baby boy Buddy and his gentle loving spirit will live on in our hearts forever. RIP my tiniest little nightingale, Buddy."