What is the significance of couple rings? How did that custom get started? I've only seen this practiced in dramas, but is it for real? I think it's sweet.
Yes. It might be true, but it depends on couple.
Most Korean women usually look forward to a couple rings as a gift for special event, like 100-day anniversary. Of course Men also want to make some special meaning with his girlfriend by giving it.
Dating In Korea guide 
