She is constantly going out with friends, obsessed with always looking her best, nails, eyelashes dressed up and makeup no matter where she is going. After fumbling around for a bit (like she was trying to hide what else was on her phone) she eventually showed me the clip.
Unfortunately this is all very predictable. Most likely an EA and most likely someone she works with. Is a affair a deal breaker for you? Like Steve said doesn't change anything but it is best to know what you are up against. It might be best for you to look into individual counseling also refereed to as IC.
Not going to lie you have a tough road ahead of you.