A young man selects a Valentine's Day bouquet at a flower market in Shanghai yesterday. But Valentine's Day can be a particularly embarrassing time for many men and women looking for love in China, where it's traditionally considered shameful to remain single after 30, with concerned parents raising the question of when their reluctant sons and daughters are going to get married. In the US, meanwhile, a survey finds that 6 million Americans were expecting or planning a marriage proposal yesterday, 2 million more than last year. The average price of a ring to seal the deal was US$2,410.