I have been with my partner for almost a year now, I got into the relationship right after breaking up with my ex so I don’t think I had the right amount of time to “grieve”. Everything was great in the beginning but as months went on I began to miss my ex a little and was feeling a little unhappy in my relationship. I knew I loved my partner but I felt there was something missing in the relationship and didn’t know what. I met with my ex as we were still friends and I ended up kissing them. I didn’t say anything to my partner in fear we would break up but now someone has told him that I have cheated on him in the past but I denied it. I’m now feeling worried and feel guilty for telling him the truth. I know it’s a horrible thing what I did and I realise that immediately after doing it I know I love my partner very much but I feel if I tell them they will leave me and never trust me again. What should I do?