今天是我亲爱的的生日，我想用英文向她表达我的祝福和爱意。

Dear (亲爱的名字),

Happy Birthday to you! Today is a special day that belongs only to you. As your loved one, I want to express my warmest wishes and love to you.

On this special day, I wish you happiness, health, and success in everything you do. May all your dreams come true, and may your life be filled with joy and laughter.

You are the most important person in my life, and I am grateful to have you as my partner, friend, and confidant. You make every day brighter and more beautiful, and I am honored to share your life journey with you.

Thank you for being you, for your kindness, generosity, and unconditional love. You inspire me to be a better person, and you make my life complete. I promise to cherish and support you always, and to celebrate your achievements and joys as if they were my own.

Once again, Happy Birthday to my dearest (亲爱的名字). May this year be the best one yet, and may our love grow stronger with each passing day.

With all my heart,

(你的名字)