1. "Silent love is a poem, whispered only to the wind."（沉默的爱是一首未公开的诗，只对风低语。）

2. "A shy heart, a thousand words unsaid, yet burning like a hidden flame."（害羞的心，千言万语未说出口，却如暗夜中的火炬般炽热燃烧。）

3. "Unspoken love, a secret garden, where each petal carries a touch of you."（暗恋是秘密的花园，每一片花瓣都承载着你的影子，静静绽放。）

4. "You are the one who always supported me when I was in trouble!"（你是我困难时永远支持我的人!）

5. "Don't need words, let me tell you with action, what is love."（不需要言语，让我用行动告诉你什么是爱。）

6. "I love you, but I don't want to tell you."（我爱你，但不想告诉你。）

7. "My heart beats for you every day. I am inspired by you every minute, and I worry about you every second. It is wonderful to have you in my life."（我每天都为你心跳，每一刻都被你鼓舞，每一秒都为你担忧，生命中有你真好。）

8. "Every time I see you, I pretend to be looking elsewhere, but my eyes always steal glances at you. You never know how much I secretly like you."（每次见到你，我都假装看向别处，但目光总会悄悄瞥向你。你永远不知道我暗自有多喜欢你。）

9. "I like you, but just like you. Maybe this is the furthest distance I can get close to you."（我喜欢你，仅仅如此，或许这就是我能靠近你的最远的距离。）

10. "You are the sunshine that makes my heart flutter, yet I can only admire you from afar, hiding my feelings in the shadows."（你是让我心动的阳光，然而我只能在远处仰慕你，将情愫藏于阴影之中。）

11. "Tell me you are mine. I'll be yours through all the years, till the end of time."（告诉我你是我的。岁岁年年，我都属于你，永远永远。）

12. "You don't love a woman because she is beautiful, but she is beautiful because you love her."（你不会因为美丽去爱一个女人，但她却会因为你的爱而变得美丽。）

13. "Forgive me for needing you in my life； for forgive me for enjoying the beauty of your body and soul； for forgive me for wanting to be with you when I grow old."（原谅我生活中不能没有你；原谅我欣赏你的躯体和心灵的美丽；原谅我希望永生永世和你在一起。）

这些语句都充满了诗意和情感，可以根据你的具体情况和对方的性格选择合适的句子来表达你的心意。