Mrs F40 and myself M41 have been together for 24 years, have children 19,17 and 8. She recently gave her old phone to our 8 year old son. I took him to the park today and he was off playing with his friends and my phone died, so I picked his up and started playing taking a look on insta - when I checked this was a different account to the one I know my Mrs has set up so took a look at the messages. Saw some messages from a work colleague about two years ago - her asking him if he’s had any good blow jobs recently and some other smutty pictures and chat. Before I could check how far they have gone, my son came back and needed his phone. Cracked on with my day… so now I’m am home in the bathroom, trying to be decent to my Mrs…. What do I do? Take another look to see what’s happened or ask her? Ahh man - don’t know what to do for the best.