I messed up with Sarah

God, I feel so bad. It's been eating me up for months. Sarah was the best girlfriend I ever had. She was kind, funny, and actually cared about me. But I was an idiot. I was always looking at other girls, even when I was with her. I never cheated, not physically, but I know I wasn't present. I'd be scrolling through Instagram, liking other girls' pictures, and she'd see it. We'd fight, and I'd say sorry, but I never really changed. Then she left. Said she deserved better, and she was right. I should have been grateful for what I had. Now she's with someone else, and I can't blame her. I just wish I could go back and treat her the way she deserved. I'm so sorry, Sarah. I really messed up.