The 5 most talked-about moments from this week's 'Game of Thrones'

Helen Sloan/HBO

Warning: spoilers ahead for Sunday's episode of "Game of Thrones."

HBO's "Game of Thrones" gave fans a lot to talk about during Sunday's episode, titled "Book of the Stranger."

While several big reunions took place, we lost a fan favorite when Osha (Natalia Tena) gave her life in an attempt to take down Ramsay Bolton (Iwan Rheon). Plus, the episode ended in a blaze of glory as Daenarys (Emilia Clarke) got some major respect from the Dothraki.

But which moments had fans talking the most?

Social-media monitoring platform Brandwatch found nearly 60,000 "Thrones"-related mentions on Twitter during the one-hour episode and identified the moments when conversation peaked.

Here are the five most talked-about moments from the latest "Game of Thrones" episode:

5. "Little Finger" returns to the Vale.

9:15 p.m. ET - More than 1,000 mentions.

4. Ramsay (Iwan Rheon) kills Osha (Natalia Tena). The many expletives used in tweets showed many fans were not happy about this scene.

9:49 p.m. ET - More than 1,100 mentions.

3. Brienne isn't forgiving or forgetting what Melisandre has done and who was killed with her blood magic.

9:12 p.m. ET - More than 1,500 mentions.