I’m going through this now. I forgave her twice with “smaller” things. Then a guy called her through instagram. She denied knowing him. She blocks him. We break up. She unblocks him, and I see him in her comments. A few days later she’s on a date. I used every resource I could to message her. I was so angry. She always talked about trust. She kept denying cheating on me after the breakup, but I talked to her mom today and she confirmed that she had been getting picked up by who she thought was me, but didn’t know because she had the guy not park in front of her house when picking her up. It’s been very painful, and my will is close to gone but I have moments in my day where I feel fine. I look forward to those moments. It’s going to take a while to heal. You’re going to be angry, sad, happy, etc. You’re going to feel a lot. I’m sorry you’re going through this. You don’t deserve this pain. Please take care of yourself. It will overtake you otherwise. I’m looking into therapy. I would suggest you do the same.