How should I text her?

Since she is so cold, you have to melt her with enthusiasm.

To get to know her better, you can go to the Internet to meet her friends. Only by knowing some things about her from her friends can you have more topics to talk about. That way, even if she texts you a few words back, you will have something else to talk about. The topic continues.

Send her surprises from time to time. You can buy flowers at the post office and send them to her place of school or work. When people around her know that someone is sending her flowers, she will feel more dignified and will not be so cold to you.

And maybe it’s just her habit to text back a few words.

These are the suggestions I give you, but chasing girls cannot just rely on these superficial things, but more importantly, you must be sincere. If it was sincere, I think she would feel it.

I wish you success.