He's been headbobbing and black-bearding at me lately, and he's never done this before. I read up and saw that this means they want to mate, so can I give him a stuffed bearded dragon I have and let him have his way at it?
Lots of time out to run about in safe area of the house to let him use up some of that pent up energy.
Uberhorny boy beardies find all sorts of things sexy , socks, shoes, your toes, cushions on the floor, carpet edges, metal carpet hold down strips .... you're in for a torrid time til his hormone settle down.
Let things run their course , in a month or two things will settle down and you'll have your laid back beardie again.