Does the amount of time to text back really matter?

[jeemm]

Depending on a lot of different factors it might or might not. Is he often busy and/or is he social? Does he respond to messages to other people faster than to you?

It could be that he just isn't interested but it's usually really clear when the replies are short and lack any emotion behind them.

[Madhatter920]

I thought the whole purpose of texting was because you could respond to it at any time. If you need an urgent response, call instead. I don't even read my texts but once a day.