Courtney Robertson's not looking like the villain lately.

On ABC's After the Final Rose special, which aird this Monday, her fiance, Bachelor star Ben Flajnik, swore on his father's grave that Us Weekly's photos of him kissing and groping three other women were misinterpreted -- that they were just "old friends."

But insiders tell the latest issue of Us, out Friday, that the San Francisco winemaker, 29, in fact only met the trio of women in question in February -- and is still texting one of them.

Photographed kissing a mystery woman February 18, he told her in a text that he "felt guilty" about getting caught, a pal tells Us.

But, despite his betrayals, Flajnik hasn't thrown in the towel with model Robertson, 28, just yet -- telling one pal his plan to get "more serious" with her despite what he calls the "situation."

For more on Flajnik and Robertson's bad romance -- details on his betrayal and a new engagement ring! -- pick up the new Us Weekly, on stands Friday!