Do dry texters know they are dry texters

I love hanging out with my best friend but when it comes to talking online, shes very dry. I'll send her multiple messages and she'll reply with a short sentence. When it comes to small things, she's just a dry texter and i get that they're not massively important but it just bores me. If i have something big to say or she does, then she'll get more interesting. I haven't told her because why would I, it's not affecting our relationship but do you think she knows shes being dry? Do dry texers know they're being dry

The fact that "If i have something big to say or she does, then she'll get more interesting" suggest that most of the time (when neither of you have "something big to say") she's just not interested in talking online. So although you say, "it just bores me", it seems very likely that the whole conversation bores her too, which is why she's not really keeping it flowing. She knows she's a dry texter, and she's doing it on purpose because she's bored.