Meet her?
Talk with her about what you really want
Ignore the on and off behaviour
Could be many reasons. You only know one thing for sure: you don't know why she's doing it.
Assume she is (deep down) also interested and seduce her in person
Another general advise if it (texting) doesn't work: do something else instead...
If you think I am insulting you with my post or bashing you: You do not get the point.
I am not here to insult or bash anyone. I offer up my free time to help. Take from my post what is useful to you.
If you are angry about my post or myself, then please stop and think how that happened. Usually that is the way the brain responds if a critical belief system is challenged (its called cognitive dissonance). If you have trouble with it please answer in the thread. I will come back to you.