Another wedding is about to take place on Reign in a new speak peek of the emotion that takes place in the crowd.

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The scene was posted on E! News on Wednesday that shows Greer about to tie the knot with Lord Castleroy. Random people are in the room as they anticipate the bride walking in to say "I do."

While Mary and Lola stand next to each other as they wait, Greer ends up walking in with her elegant white dress and flowers. Even though Mary smiles in support, someone else looks a bit uncomfortable- Leith obviously still has feelings for Greer.

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This leaves some questions on how this wedding will go. Is Leith going to try to stop it and show his love for Greer? Or is he going to swallow his pride and let her go through with it?

The site pointed out some other moments that are about to take place, including Leith and Bash discovering a secret about Castleroy that could cause some serious mayhem. It was also mentioned that even if Greer does go through with the wedding, then that doesn't necessarily mean it's over with Leith. Showrunner Laurie McCarthy recently stated that an open marriage is going to be taking place this season. But was she referring to this couple? Or is there another married couple who might try that out?

Check out the wedding clip here.

Reign airs on Thursdays at 9 p.m. ET on The CW.