After his debut on Season 11 of "So You Think You Can Dance," Onik worked with Peta and her husband Maksim Chmerkovskiy on DWTS. In an emotional post Wednesday, Murgatroyd shared a series of heartwarming photos of the pair, including a photo of him holding a stuffed koala --- a pet name she reserved for Onik.
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"My Serge…..my Koala I can't believe it, I am completely broken, I'm filled with regret because I was going to text you and tell you that I missed you last week and it slipped my mind," Murgatroyd captioned the photo collection. "I f--king hate how I forgot to do this. I will always hate myself for this."
"My heart f--king hurts, my eyes f--king hurt and my soul is aching to squeeze you one last time," she continued. "I just need one last squeeze and one last play fight like we used to."
"I just need one last giggle about something smutty and one last eye roll and maybe one last dance in the club. You were always such an amazing leader in dance and the king of rhythm," she wrote. "While I couldn't write anything these past few days, the pain was too bad, I read all the beautiful messages from hundreds of people around the world. YOU WERE SOOOO LOVED…SOOOO LOVED, much more than you knew. You were so kind, so jolly and were the life of the party."
Murgatroyd said Onik was there to support her following the birth of her son, Shai.
"I will never forget your graciousness of helping me after giving birth to Shai," she recalled. "You made me dance, made me move and made me get up and believe I could do it again. I was HUGE and you told me I looked amazing haha and to not be so hard on myself."
"For that, I can never write/say anything that would amount to the level of gratitude I have for you," she concluded. "Your selflessness was unmatched."