Sounds like your wife’s “ art work “ is more important than you. If it wasn’t art it would be some other excuse. I don’t thing expecting a hug is unreasonable.
I’m sorry you have children involved. My advice , based on personal experience, is get ready for anything. Never have to depend on anyone. Love is like dated milk. It goes bad fast. Find your own interests and start living your own life.
Marriages go bad like stale bread. And you may have done nothing wrong.
You came into this world alone and you’ll go out alone.