I don't know what your Ts feelings about texting are but my T won't address "big" feelings on text. Usually my big feelings are negative. But if you haven't had any big discussions about these sorts of feelings she may not want to discuss it over text.
I agree it is kind of a weird response and it seems like she could have come up with more helpful statements in response without starting a big discussion. But it might be one reason for the weird response.