So went on a second date night before last, things went really well, ended up staying over hers (and everything else that that entails). Afterwards she text me saying I'd left my belt over there and I replied, then she replied. I then sent my next reply, but 15 hours later she's not replied. But on iMessage it doesn't say that the message has been delivered, so I don't think she's ignoring it. But I also know that double texting is beta as fuck. Any advice?