'Teen Mom 2' Leah Messer Birthday Heartbreak: Custody Loss Leads To Missing Twins' Special Day

Teen Mom 2 star Leah Messer's sadness over losing custody of her twin girls to ex-husband Corey Simms has been made even worse after not being with them for their sixth birthday. The MTV star penned a heartfelt Facebook message for Ali and Aleeah that certainly pulled on her fans' heartstrings.

"2 of the 3 reasons I'll ALWAYS remain standing on my own two feet ! These precious little girls have been the reason I've held it together through it all, the good and the bad. I don't know where I would be without them!" Leah started off her post. "Mommy will never forget that feeling when Dr. Hunter placed you on me at 8:09 and 8:10 NOW 6 years ago. My heart for the first time skipped a beat and I knew what true love really was at that very moment! I'm so blessed to call you both my daughters. You make mommy proud each and every day..."

The reality star didn't stop there. She also tweeted and retweeted her feelings about losing guardianship to Corey and not being there on her daughers' birthday.

"Never give up on something you really want. It's difficult to wait, but it's more difficult to regret," she posted.

Never give up on something you really want. It's difficult to wait, but it's more difficult to regret.

— Relationship (@ohteenquotes) December 16, 2015

Leah's twins' party may not have been on their actual birthday, but she made up for it with a big bash of her own. Here are some of the photos:

As MStars News reported, the West Virginia mom has been very critical of her baby daddy, especially since she has felt he has been trying to sabotage her.

"Prime Example of Coparenting and doing the RIGHT thing for the little innocent hearts involved!!" she wrote on Twitter.

Prime Example of Coparenting and doing the RIGHT thing for the little innocent hearts involved!! https://t.co/Vb2vwUUKTO

— Leah D. Messer (@TM2LeahDawn) December 9, 2015

What do you think of Leah's letter to her daughters?