do u notice this Only seems to ever happen with women?? it is either u're hyper-sensitive and perhaps sending them an sms on a monday morning... or they aren't as happy as u're expecting them to be.
depending on your age, mentality, profile, maturity etc - why shoud pple be happy that u're getting married - by default?
for me i'm indifferent, but if a 23yr-old guy/gal tells me he/she wants to get married, i'll be half-confused at the viability of that decision, and whether the motive was indeed what marriage sets out to be?
or they could all simply dislike your fiance, dislike u, or wonder why the hell u're getting married after a short courtship etc...
my fren got married on the day of the world cup final... i think only 2pple filled that table. we are all football fanatics, obviously in the world of men, it's very forgiveable to Not attend... becos wedding date can be changed, world cup final Cannot. another got married on christmas eve... Honestly, getting married on certain occasions shows how insensitive u are to your guests... family comes first, so obviously i'd be with family having turkey n honeybaked ham instead of a wedding having chinese 10-course dinner!
there are thousands of reasons... explore yourself first. starting from your fiance, to how u introduced him to your frens, to whether he was ever approved by your groupie, to whether u kept rubbing your relationship all over their faces, to whether u have neglected them once u got attached, and only trying to employ their help when u need them now.
Frenship is 2-way, and requires a constant flow of sincerity... it is in the nature of your gender not to bond the way men do, and thus female bonds require much more maintenance and frequency than males.
reflect on yourself first. normally if u're not popular across the board, the higher chance is that it's You.