I found out a new co-worker joined my dps work in August 2018 and they first got to know each other on a group training in November 2018. From there they would spend their lunch breaks together in the local town twice a week for 6 weeks. I never knew she existed during this time but found out due to him searching for her on social media and searching for her on google images. It’s clear he had feelings for her, however it had only been six weeks. In that time they had just been friends, they hadn’t discussed our relationship really or let each other know whether or not they had feelings for each other. So I don’t know whether he would have cheated or not because I found out so early.
He has cut all contact from her now and is doing all he can to make things work with me. It’s been two months and I am still totally preoccupied with it. We have been together nearly a decade.