DD is nearly 20 months old. I had to go out for a couple of hours this morning leaving her with DH. He said she didn't even notice I'd gone out. When I got back all I got was hmm your home. When DH gets home from work or just been out a couple of hours she runs up to him shouting 'Daddy' and puts her arms up for a kiss and cuddle.
I know I'm being a bit stupid, and I want DD to be independent and not tied to me, just not yet.