We're rooting for him!

Rob Kardashian celebrated his 31st birthday over the weekend with a St. Patrick's Day-themed bash, and the reality star was noticeably thinner than he's been in years in photos shared from the party. In one, he flaunts his dramatic weight loss while holding daughter Dream, and it looks like he's lost over 50 pounds at least!

Kimmy K's little bro has struggled with depression, obesity, and diabetes for years, but this makes us think he's finally turned a corner.

His famous family jumped on social media to send their b-day wishes, and it also seems that he's finally on better terms with all of them since that whole Blac Chyna drama went down.

"Happy Birthday to my brother Rob!!! I love you so much and wish you all of the happiness in the world! I love raising our kids together, you’re the best dad and friend! Can’t wait to celebrate today!! 🍀🍀🍀," Kim wrote.

"Happy birthday Rob!!!! This year is YOURS! I can’t wait to see all you conquer! Seeing you as a father has been so rewarding! You’re an incredible father, brother and friend! I can’t wait to raise our daughters together! I love you Bob 💙," Khloe posted.

"Happy birthday #robkardashian!! You are the most wonderful son a mom could ever ask for and I thank God for you every day! It brings me so much joy to see the incredible father you have become. I am so proud of you!! Love, Mommy x #HappyBirthdayRob #ProudMama," Kris gushed.

Even BC sent her regards! "Happy Birthday Rob from Dreamy and Chy," she captioned a pic on Instagram.

His stripper ex must not have liked all the attention he was getting, though, because she hopped online to steal the spotlight with these sexy selfies!

A post shared by Blac Chyna (@blacchyna) on