@L1nA As soon as I see the text, I text back virtually straightaway (or at least, as soon as I am able to.) I can't fathom why some people take a whole day - or 2-3 days or more - to answer a text!
I know several people who NEVER text back or answer a facebook messenger message for 1.5 to 3 days. Yet I see the 'message seen notification,' within an hour, and I see them posting on facebook, twitter, instagram etc, and I think 'ignorant fecker!' 
I don't understand why people leave it so long (sometimes DAYS) to text people back!!! And yet these same feckers always bitch and moan and get huffy if you don't text THEM back within 5 minutes.
I also know a few people who never answer their fucking phone. NEVER. And rarely return my call when I leave a voicemail. Yet when I don't answer the phone or call them back within half an hour - (coz I am in the shower, or have left my mobile phone in the car, or the battery is flat, or there's no signal,) they go loco!!!
Very bizarre, and very 'me me me - it's all about MEEEEEE!' and 'I am SO important and speshul that I shall keep my subjects, and the peasants waiting... But they shall tend to me immediately!!!'
You find that (some) people like this, are the same ones who are always 'fashionably late,' who expect lifts and never offer any petrol money, and who borrow money/various items of yours and never offer it back.
@ForeverBubblegum
There's nothing more annoying then trying to plan a meet up, the conversation gets as far as "I'd love to meet tomorrow, what time are you free?" Then the other person disappears.
I hate this too. And for that reason, I don't arrange meet-ups and the like via text. I prefer to speak over the phone... (Or in person!)