Hi John,
How are you? It's been ages since we last spoke. I hope everything is going well.
Sorry, I haven't been in contact recently. I've been meaning to write to you for the last couple of months, but I just haven't got round to doing it. Sorry for my laziness.
What have you been up to lately? I remember you telling me that you were thinking about moving house. Did you do it or are you still living in the same place?