I wouldn't read too much into it.
This is a stupidly busy time of year for most of us and I have to admit as much I would like to return all calls and emails within 24 hours of receiving them the truth is stuff can be sitting on my desk for weeks if it's not urgent.
By urgent I mean urgent to the bigger picture, not necessarily urgent to the couple. I know it isn't what you all want to hear but the reality is that I'm usually pre-occupied with the wedding I've either just shot or am about to and my energy goes into getting those images turned around quickly for the couple and if the paperwork is a little late, well, it's a little late.
But to set your mind at ease despite this 'relaxed' (I wish!) attitude I usually get peoples images back to them within 3 weeks of the wedding and the album designs done within 2 weeks. But if you pay me a cheque it will often sit there for 3 weeks because in my mind getting the work done takes priority over getting paid for it. Hope that helps.