As I was putting The Boy to bed tonight we read one of our favourite books: "I Love My Mum", it's a gorgeous book and one that I've mentioned before when I showed him 'reading' it.
In the book the baby animals explain (in prose) why they love their mummies; she keeps me warm, she keeps me safe, she lets me play in the mud, etc. At the end of the book, we had a cuddle and a kiss, and then I took a risk. I asked him why he loves me.
"Because you help me make things".
That makes me incredibly happy.