Your heart was broken by Daryl. You did everything for him; you defended him even when he was wrong; you'd risk everything for him; that's how much you loved him. He left because he became more and more vulnerable around you, and he couldn't let that happen, so he left. That was two months ago. You two were in a house looking for goods to take to Alexandria. You could feel the tension, but you still chose not to say anything. Daryl ignored you as much as possible, but when he was around you, he acted like he didn't want to be around you.