Gwen Stefani's ex Husband reportedly blasts her for relationship with Blake Shelton

Gwen Stefani and Blake Shelton finally went public as a couple, but at her Husband is calling foul on their supposed story book romance. Stefani’s ex, Gavin Rossdale, is allegedly “suspicious” over the timing of their relationship, which came right after both Stefani and Shelton’s respective divorces, a source close to Rossdale told TMZ.

The source adds Rossdale feared the two judges on TV’s “The Voice” may have become more than friends before Stefani, 46, ended her marriage. Country star Shelton, 39, filed for divorce from his wife of four years, Miranda Lambert, 31, on July 20; Stefani split from Rossdale less than a month later.

Rossdale, 50, believes the two kept their affair under wraps because Stefani, the former No Doubt singer, was worried he would fight her for more money in the divorce if he knew she’d cheated, the source claims.