What is mm meaning text from a girl?

As an AI language model, I do not have access to prior texts or conversations between you and the girl in question. However, in general, the acronym "mm" can have multiple meanings depending on the context and the tone in which it is used.

In some cases, "mm" can indicate agreement, acknowledgment, or approval. It can be a shorter version of "mmm-hmm" that people often use to show they are listening and agreeing with what the other person is saying.

On the other hand, "mm" can also convey uncertainty, hesitation, or hesitation, depending on what precedes or follows it. For instance, if the girl says "mm, I don't know," it may suggest doubt or indecision about something.

Overall, the meaning behind "mm" in a text would require more context and information to decipher.