While signing autographs at The Normal Heart premiere May 19 in Beverly Hills, California, Ushkowitz announced their three-year relationship had come to an end.
And here's how it happened.
While making the rounds at the premiere, a videographer asked if she was still dating Trevino, E! Online reported.
"No, we're not together anymore," she said.
When the videographer realized he may have made the 28-year-old star uncomfortable, he apologized.
"That's OK. No worries," she responded.
When asked if the two were still on good terms, Ushkowitz said, "We're wonderful."
The breakup doesn't necessarily come as a surprise. When the two first started dating, Ushkowitz told Ryan Seacrest she and Trevino were "very close."
But neither mentioned the other very often on social media, or elsewhere. Four months ago, Ushkowitz posted a picture from the 2011 SAG Awards on Instagram, wishing the 29-year-old Trevino a happy birthday.
Ushkowitz posted a similar Instagram birthday greeting the year before.
Doesn't look like she's pining away either. Saturday morning she posted a photo while on vacation in Hawaii with friends, including Glee costar Kevin McHale.
All my dreams come true. Vacation in a hotel bed, Titanic on TV, A/C running, legs half under the covers and ... http://t.co/1wNgfz3LMp
— Jenna Ushkowitz (@JennaUshkowitz) May 30, 2014
Life's about laughing & living, replacing inner hate with love, getting through whatever comes our way, looking back & smiling
— Epic Women (@Epic_Women) May 30, 2014
Image via Wikimedia Commons