你的眼神令人心跳加速

Your sight speeds my heart beating up.

情书可以参考：

Dear XXX,

How was I to know that you were watching me sleep? I awoke to see you laying there and just then, you smiled and said hi and that just melted me. I wish with all of my heart that I could wake to your beautiful eyes for the rest of my life.

I hated to leave but as I have told you, I left a big part of me with you. It is yours now so, take care and tread lightly. I wish that I could be with you now as you face so many struggles, but know that I am there in spirit and am praying for everything to work out for you. No matter where this life takes us, together or not, know that you and your girls will always be in my heart and "my favorite."

Love always,

XXX

Your eyes is speeding up my heart.

Your eyes is rapid heart beat.

Your eyes made my heart speed up.