Why did this girl take so long to respond?

[Thaila]

I think she's genuine about saying she's busy and I think she is interest to know you too and probably doesn't realise your interest in her. Although, if she isn't reciprocating your behaviour, then she probably isn't as interested as you or she expresses herself differently to yourself. I say that you should keep letting her know that your interest and maybe she'll get the message. However, you can only do so much; don't hold on to this girl. If she still doesn't respond the way you want her to, it's probably time to move on from her. Good luck though