Couple Ring

What does it means to you?
Locking each others or tie each other forever?
It's a trend for every couple to wear it, till now i think 10+ year already? hmm. back to question, why does couples need a ring to lock or tie each other up? some may say, this is a ring to remember and think when another parther isn't around. does it really that useful?
my mind set was arent heart to heart is the main point? i personally had one couple ring( threw it into the sea liao) and a enagagement ring which i'm still wearing throu my parther already run away.. hahas.. what's your view? share share..