Sharing a black and white photo of Jenna to Twitter for her 37th birthday, Channing started the post with: "This creature is 1 more year beautiful."
"The transformation she invoked this year has been something they only write about in books of fairytale & magic," he continued.
"Your strength & grace ever evolving. You make everything around you grow. So grateful for your lessons. Happy life day my love."
We're not crying, you are.
The loved-up pair, who met on the set of Step Up in 2006, share a four-year-old daughter named Everly.
Channing has previously opened up about the moment he fell in love with Jenna, saying: "I knew our connection was really powerful, but I wasn't sure what our relationship was going to be," he wrote. "Then one day, Jenna just blurted out that she knew exactly what she wanted in life and she didn't have to look for it anymore because it was me."
"She had no idea what I'd say or how I'd react, but that was her truth. I remember feeling this incredible rush - it was the sexiest thing she'd ever done for me," he told Cosmopolitan.
"I felt strength, because in that moment, she had accepted every part of me, the good and the bad. And I knew she wasn't auditioning me or hoping I'd meet some set of expectations. That radical authenticity of hers was what made me fall head over heels in love. Before I experienced it, I wouldn't have known how to ask for it. Now I know it's what I was always craving."
Okay. We're crying. We're definitely crying.