DTMFA.
My wife makes double what I do; I make a very healthy chunk, and actually support an ex wife to some degree, at least for a little while longer (not child support). I had a self-image built around being the breadwinner. It was uncomfortable, but do-able, to come around to accepting that my wife is the bigger earner.
The add-on junk behavior? DTMFA. Be glad you make more, because if you made less, he'd be like my asshole BIL who thinks he's entitled to be a selfish jerk in the marriage because he makes more of the money. Most insecure guys need to be able to control their women, and money is a big way a lot of them do that.