Is my trust shattered forever?

I recently discovered troubling messages between my 34F partner 35M and my closest friend 33F. They insist it's innocent, but my instincts scream otherwise. I feel betrayed and confused, unsure if I can ever trust them again. Should I confront them and risk losing both relationships or try to move on silently? My heart aches from this emotional turmoil. Any advice? #BrokenHearts #TrustIssues #InnocentOrNot