I think you do need to ask him about this. You need to know his thought process. There may have been some kind of a problem he didn't want to trouble you with (real or Imagined)
My husband grew up with the attitude that men handle all the problems and don't let the "little woman" worry. It drove me crazy the first few years we were married. It took me a few years for him to "get" that we are a partnership and if he wanted a "helpless Nelly" he shouldn't have married me. It took him a while to be able to share his worries, it still isn't easy for him. I have to accept that. He once told me my independent attitude was intimidating. Part of my answer was he couldn't have traveled for work and done his job so well if he had to worry about the kids and I. He knew I could take care of things.
He's retired now and after about a year of adjusting, it's nice to have him home all the time.
By the way we have been married for almost 40 years. Not all problems go away in a week, a month, or even a year sometimes.