Enjoy your night out. That sounds a good perspective.
Your son is one lucky boy to have a daddy like you and I know it must be tempting to try to find a reason for him being unsettled. My g/son is 20mths and has the most loving and devoted mum and dad together but my d still phones to say xyz what do I think. Unfortunately they don't come with a manual but also they haven't had a mum and dad before so they have no comparisons to make, so you will always be the best in his eyes--well until he's about 12/13yrs.