i don't mind people bragging about their good fortune, i am used to hearing people out and i am usually happy for them. but i can not be happy and congratulate someone who have what they have based only on luck or good looks.
And i don't really look forward to the times they complain about getting dumped either, because they're not actually sad about loosing someone you care about, more like they're sad over not having the good looking guy to brag about.