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The former "Beverly Hills, 90210" star decided to mark the day the actor turned 45 by laying out her emotions in an open letter posted on her blog on Wednesday.
Tweeting the sweet note to fans, she writes, "A love letter to my soul mate on his birthday…happy birthday @deanracer".
The full message reads, "Dean... I've known you my whole life. But only in my heart. I would dream of you for so long. So many represented you. My dad. Every Ken doll I ever played with. Every prince in every Disney cartoon. The lead character in every John Hughes film. Not one guy I ever dated. And, then you became a reality. It took me 32 years to find you... You allowed me to be me. You've helped me achieve my dreams. I reach further knowing if I fall you'll be there to catch me. You've given me the greatest gift I can ever know. The gift of motherhood.
"The three lives we've created together were made out of pure love. We will raise them with pure love. And, one day we will smile at each other knowingly as they each find their own soul mate. Thank you my love for the brilliant life we've created together. Thank you for making all my dreams come true. I love you."
The couple wed in 2006.