?
I would say she most likely doesn't view you as very important to her and is replying because she's now bored and just getting round to it to chat to people
Love
yes but you should be like "woah that was a very late reply" and see what she says but mostly likely yes , sorry
coffee
It depends what she said in reply. Also not everyone is big on texting. However, taking a week likely means she isn't thinking of you as dating material.