glee season 4 finale blaine kurt proposal patty duke meredith baxter fox 'Glee' spoilers: A Klaine proposal and Patty Duke and Meredith Baxter as a lesbian couple

Marriage equality and surprise proposals are going to be a big part of the “Glee” Season 4 finale. Not only will Patty Duke and Meredith Baxter guest-star as a committed lesbian couple, but Blaine will take steps toward a marriage commitment with Kurt!

As first reported by E!Online, Blaine (Darren Criss) will make the decision to propose to Kurt (Chris Colfer) after he meets a long-term couple played by Duke and Baxter. There is also a possibility that both actresses will return on a recurring basis if “Glee” gets a Season 5 renewal.

Blaine meets the Patty Duke character when he goes to a jewelry store to purchase a ring. After the two talk, the jewelry salesperson offers herself and her partner as potential mentors for Blaine and Kurt as they negotiate their future relationship.

Granted, all of this depends on Kurt actually choosing to get back with Blaine on a permanent basis. Thanks to distance, cheating and other forms of heartbreak, these former boyfriends have had an on-again, off-again relationship throughout this past season. Hopefully, “Glee” will at least give us some closure on this before the show goes away for the summer.

Duke has been a big name in entertainment since she was a child and is an Oscar winner for “The Miracle Worker.” Baxter, meanwhile, is best-known for her role as the mom on “Family Ties.” The actress has also recently come out publicly as a lesbian. On “Glee,” the couple they play will have been together for 25 years.

The “Glee” Season 4 finale will air on Thursday, May 19 at 9pm.

Posted by:Laurel Brown