you have to do this kind of shit because women are untrustworthy dogs and so are a lot of men, including some of your friends. the average guy isn't superman and it's better to not invite unneeded competition into your life over your woman. this offends noone and helps everyone get by easier. guys that let their gf/wife around friends guaranteed have been cheated on. it happens, people get emotionally attached and temptation comes into play. your wife/gf has no business talking with any other man besides you
Canada