How do I send a text message to remind my fiancée if I feel emotionally distant from her?

Content: Well, I'm sorry to bother you. What I want to say is that I am not sure whether we can grow old together, but if you choose to be with me, I will definitely give you happiness. If you have someone you like, please tell me. Even if we can't be a couple, we can still be friends who share our worries. (Add the others by yourself. If you don’t have your own language, you will be exposed immediately)