Wooah too bad I wasn't into wgm show but I read somewhere that was wgm ring (If I'm not mistaken) kkk
If that ring was real couple ring and he lost it I think he wouldn't ever talk to the media about it or else someone would scold him kkk
He lost it so I think that ring wasn't important for him because it was wgm's property.
But if it was from his real girlfriend, what else to say, that's what us Yongshin shippers want

I think the fact that Yong keep the cho-a bear in his room tells us something.
Lee Shin doesn't like couple stuff unlike Yonghwa