The spiciest same-sex relationship on TV is coming to an end, as “Grey’s Anatomy” has parted ways with Brooke Smith and her character on the show, Dr. Erica Hahn.

The 41-year-old actress was given the axe, as her final appearance on the ABC medical drama will take place in this Thursday’s episode of “Grey’s Anatomy,” the network announced on Monday.

Thus, the mushrooming romantic story between Dr. Calliope Torres (Sara Ramirez) and heart surgeon Erica Hahn will be brought to a standstill in a rather abrupt manner, although the series’ creator and executive producer, Shonda Rhimes, explained in a statement that the breakup would have a decisive influence on Callie’s attitude toward life, offering as an example the impact Dr. Preston Burke’s (played by former cast member Isaiah Washington) departure had on his fiancée, Christina Yang, impersonated by Sandra Oh.

Shonda Rhimes said that Brooke Smith was not dismissed because she was filling the shoes of a lesbian, as such a character did not represent a major problem for the show. However, the creator explained that Brooke Smith and Sara Ramirez’s fictional personas failed to spark “magic and chemistry,” and proved that Seattle Grace Hospital’s same-sex relationship had, in fact, no future.

In an interview with Entertainment Weekly, Brooke Smith said that she was very thrilled by the nature of relationship her character was planned to have with Callie Torres. She explained that she had high expectations with regard to the blooming romance between the two women and that she was very disappointed and puzzled when she was announced that Dr. Erica Hahn would be written off.

Moreover, the actress told the source that her final scene in “Grey’s Anatomy” features the top heart surgeon heading to her car to be never seen again. She added that Sara Ramirez was also shocked when she heard the news.

Mary McDonnell of “Battlestar Galactica” is due to join the show on November 13 as a heart surgeon, while “Alias’” Mellisa George will also start her saving-lives mission during the same episode. Melissa George will reportedly play Sadie, an old friend of Meredith Grey (Ellen Pompeo), who happens to be a bisexual. Although the new intern will flirt with Callie at first, they won’t have a serious relationship, E! Online cited an unnamed source as saying.

Since ABC downgraded Rebecca Romjin, who plays transgender Alexis Meade in “Ugly Betty,” from regular character to recurring character at the end of the series’ last season, we might as well figure out that the network has a problem with unconventional characters. If this is the reason why they made these changes, I think they are looking into the problem from a not very reasonable point of view.