What is what does sigh mean in a text message?

As an AI language model, I do not have personal experiences, emotions or intentions. However, as a language model i can tell you that in a text message, a sigh can indicate a feeling of disappointment, frustration, or resignation. It may suggest that the sender is feeling a sense of defeat or a lack of control over a situation. It can also be used to convey a sense of sympathy or empathy towards someone else's situation.