Silently Crying At Night Poem by Lynn Garman

I cant find the answers to my questions so i just try to forget bbout them.But what i really dont understand is why i still cry over yu when all yu did was hurt me. How come when songs come on and they make me think of yu i end up crying. Why is it that i cant do certain things without thinking bbout yu. I dont understand. I try to forget but i cant for some reason. So instead of making a big thing out of it. I silently cry at night.