I think men stick to their friends because I feel after marriage they mostly pave the way for who the couple will be mostly hanging out with. Then u have to end up making friends with their friends’ wives. And if they are the boring kind, "Aur kya haal hae, Aapkay ammi Abu theek thaak Haen, bachon ka school Kaesa ja raha hae " wagera wagera, u wouldn’t want to drag ur old friends into that. The husbands colleagues spouses I was meeting would be looking at my face with nothing to add if I brought something remotely interesting up , current affairs, social issues, (simple) scientific discoveries, health issues whatever. U have to brave the boredom on ur own. And keep ur fun normal friends seperate (and since my fun normal friends live in another country, it’s geographically impossible to bring them together).