I am working on this too. I admitted to my fiance one night in a fit of rage that I had feelings for an ex coworker I say ex coworker as I was fired from said job due to a issue unrelated to this guy. I discovered though after I was fired that I never really had feelings for said coworker but that I only ever fell for him because my fiance was not giving me attention and I was feeling unloved and unwanted. The other guy made me feel like I was wanted. I am very glad though that I never left my fiance of 5 years for him. A 22 year old and a 27 year old would never of worked out. My fiance is slowly trusting me again but it has taken a ton of work. I think the whole situation has made us stronger as a couple. I tell this story only to let you know it isn't easy. I had my phone set up for a while where not only did my text messages and phone calls come to my phone but my fiance got a copy of them through an app I installed. I gave him my Facebook password and downloaded all my content from the start of that Facebook account which I started it 5 months before my fiance and I met until the day I downloaded everything. I even allowed him to put a lock on my phone so when he was at work I could only receive calls. I did this all on the advice of my mom. You may have to jump through hoops to gain his trust again but trust me if you love this guy it will be all worth it it was for me.