My husband is a big flirt. He doesn't leave any opportunity of flirting with women even when I am around. When I confront him he says its all in fun and nothing serious. But I get hurt by this behavior. Am I overreacting?

Male perspective here! What do you mean by flirting? If it's just joking and laughing around and he is a jokey kind of guy then its jut part of his nature and natural - and would be more unnatural to stop this. (For context, my wife calls me a natural flirt but knows its part of me, unintentional and harmless - and tells me it would be weird if I changed myself as it's part of what she loves about me). BUT... if its more serious then have a serious word and potentially seek professional help.