Luann de Lesseps Looks Glum & Lonely One Day After Announcing Divorce

A day after announcing her shocking divorce from cheating husband Tom D’Agostino, Luann de Lesseps was caught looking glum and lonely while out in the Hamptons, RadarOnline.com can report.

Just yesterday the Housewife released a statement via Twitter saying: “It's with great sadness that Tom & I agreed to divorce. We care for each other very much, hope you respect our privacy during this sad time!”

The news came as a surprise, as just days before, she had responded to her husband’s cheating rumors, assuring fans: “We are together in Sag and are happy.”

As RadarOnline.com reported, D’Agostino was accused of flirting with a mystery blonde – who is allegedly his ex girlfriend – while getting drinks at a dive bar. He denied the rumors. De Lesseps too was caught flirting with single hunks in previous solo outings during her marriage. “She was laughing with these two men at the bar after her husband left,” said a source.

According to a pal, the 51-year-old star – who attended Jill Zarin’s Luxury Luncheon last weekend while her hubby was allegedly off romancing another woman – looked “horrible” and was “beet red from crying” on the days before her divorce announcement. “She is devastated, and humiliated,” added the source.

Even before their marriage, D’Agostino, 50, was caught cheating on his famous wife. While de Lesseps denied his recent infidelity rumors, hard evidence from RHONY co-star Ramona Singer apparently sealed the deal.