Your wife will not mind if you hang out with your friends once in a while. But, if your friends continue to take the lion’s share of your free time, you will end up living with a jealous and irritated better half. So after you get married, it is best to tone down the amount of time you spend with your buddies. Or, organise some couples' get-togethers, where your wife becomes a part of your 'group'. She will enjoy meeting your friends as well as spending time with you.