My mother has had 7 husbands and about 24 'live-in' lovers (for want of a better word).
My older sis has three kids to three different blokes - runs away from commitment.
My youngest brother has four kids to four different women.
My younger sister is totally freaked by commitment - had three weddings fully planned and almost totally paid for, then chickened out at the last moment.
My other brother has been married for 15 years, is very happy and has 2 kids.
I've been married for 21 years with three kids (although one is to a previous relationship) and am very happy (all things considered at the moment).
DH's parents have been married for 60 years this year - I think they freaked slightly when he brought me home (with a daughter in tow) - but we get on great now.