The 28-year-old, who plays Philip "Lip" Gallagher in the U.S. TV series, sparked rumours he was engaged to "That Awkward Moment" actress Addison Timlin on Friday, April when she was spotted wearing a diamond sparkler on her ring finger as they held hands while out and about in Los Angeles.
Timlin, 27, appeared to confirm the news on Sunday by sharing a picture of the duo on Instagram in which her ring was on full display. In the caption, she wrote, "Mom & Dad".
The engagement news comes just months after they welcomed their first child together, a daughter named Ezer Billie White, in October (2018).
White and Timlin starred alongside each other in 2008 "Afterschool", but their relationship did not begin until several years later.