I send messages when I want to and if they don't reply then they don't reply. You will get a feel soon enough for if they text when free, text all day long, don't like texting at all, prefer the phone, hate talking on the phone or are just low interest. I have friends and lovers who fit into all categories. Some folks I am happy to text once in a while. My BFF is atrociously slow at texting ( in my opinion) but will always return a phone call and as she is my BFF that is fine. If my new romantic interest isn't into either texting or calling apart from once in a blue moon then they are not going to be a good match for me. Conversely, with my new job, I cant text really at all during the day anymore ( I used to respond to nearly all messages extremely quickly ) and I would get irritated at someone who sent "Why haven't you replied?" messages.
Send your messages Ms Emotional!
Send your messages Ms Emotional!