1 word replies are generally bad, but not necessarily. Some people just don't like texting much.
"Me: Thinking of going to the mall and grabbing something to eat, you work today?"
Seems like you're beating around the bush. Would be better to be more direct, like "I'm going to the mall later to eat. Want to meet me there at 4pm?" She'll either say yes or no. Probably no since she's giving 1 word answers, but you'll have a finite answer and you won't have to wonder.
"Me: Thinking of going to the mall and grabbing something to eat, you work today?"
Seems like you're beating around the bush. Would be better to be more direct, like "I'm going to the mall later to eat. Want to meet me there at 4pm?" She'll either say yes or no. Probably no since she's giving 1 word answers, but you'll have a finite answer and you won't have to wonder.