Colton Haynes‘ mother, Dana, died after battling with advanced cirrhosis of the liver and kidney failure for quite some time.

The 29-year-old “Teen Wolf” actor shared the tragic news with a heartbreaking message posted on his Instagram on Friday night.

“Today I lost my best friend, the love of my life…my momma,” Haynes expressed alongside a slideshow filled with pictures of him and his mother. “Words can’t express how incredible this woman was. I have so many things to say but I’m in a state of shock. I will always love you momma. RIP my angel.”

https://instagram.com/p/BfbyH5CjbHV/?utm_source=ig_embed

A couple months ago, Haynes was on cloud nine after marrying Jeff Leatham in Palm Springs, California. See more in the video below.

More From ET

Henry Winkler Is Just Looking for a Good TV Show to Watch (Exclusive)

How Meghan Markle’s Healthy Lifestyle is Rubbing Off on Prince Harry (Exclusive)

Gleb Savchenko Says He’s Joining ‘Dancing With the Stars’ All-Athlete Season (Exclusive)