Having a hard time letting him go?

It's been a week and half since I walked out on him, because he was drunk and being mean to me. We haven't talked since June 21st. Since then his mom and sisters have kept in contact to see how I was doing. But since I found his wallet in my car, I have no choice but to give it back to him when he gets back from visiting his sister. Which means there will be confrontation with him. Going to his house to give it back. We've gone weeks without talking before and we always got back together. This time, it feels different. I mean I was the one that left him, but why do I feel this way? I've done everything to distract myself. From leaving the state to going out to lounges and enjoying myself. I can't even talk to other guys and move on cause all I think about is him. Every time I open my phone, it takes everything inside me not to text him. He was my everything, I used to talk to him everyday.   I don't know what to do... He's always on my mind.