Secret love

When I was 13 I met my secret love, he was older than me and it didn't bother us. We were both into eachother he'd pick me up after school and my parents approved. We had been officially dating but he was a snake. We broke up and ever since we run back to eachother when we are lonely but I love him and hate the girl he's with. She treats him badly. He tells me he loves me and wishes the age wasn't an issue but it's not to me. Idk what to do .