An insider tells Page Six that Mellencamp allegedly stepped out on Arroyave several times with a longtime pal, whose then-wife was also a close friend.

Teddi Mellencamp dressed up as a toad for Halloween - which seemingly referenced to her married horse trainer, Simon ...

Teddi Mellencamp filed for divorce from her husband of nine years, Edwin Arroyave, on November 1 and cited October 20 as ...

Mellencamp disabled the comments section of the post, which she uploaded shortly after Page Six confirmed that she allegedly cheated on Edwin Arroyave.

Teddi Mellencamp didn't directly address the news about her past affair - but she did share a cryptic quote amid the ...

Teddi Mellencamp had an affair with her horse trainer, Simon Schroeder, months before separating from husband Edwin Arroyave, ...

Kelly Dodd says she 'knows for a fact" The Real Housewives of Beverly Hills alum Teddi Mellencamp cheated on her husband.

Teddi Mellencamp had an affair with her horse trainer, Simon Schroeder, months before separating from husband Edwin Arroyave, ...

A former "Real Housewives" star claims that Teddi Mellencamp cheated on Edwin Arroyave, effectively ending their marriage.

"Real Housewives of Beverly Hills" star Kyle Richards showed support for her longtime friend Teddi Mellencamp amid her ...

The Real Housewives of Beverly Hills’ star Kyle Richards supported Teddi Mellencamp amid her separation from Edwin Arroyave ...

It seems that Teddi is taking a page from Kyle’s book. Teddi shared the news that she filed for divorce from Edwin on ...