MickS and Daniel J have some good answers here, and I'd just like to add...even if it was a disappointed look, there are many things for one to be disappointed about. Maybe he got a good look at something he liked but has a sore back, or the kids would be waking up, or something else that would prevent him from taking advantage of it. Honestly, if it's something that bothers you then it might be a good idea to just ask him what he thinks of your appearance...and accept his answer. Many women make the mistake of asking their husbands that same question, and then tell them they're wrong when they answer or keep pushing to get repeated insistence that you're still gorgeous. No one likes to be in a situation where they feel like they can't give the right answer, even when they've already given you the truthful one and when the truth is what you want to hear.