I Had Unprotected Sex With A Former Boyfriend That I

I had unprotected sex with a former boyfriend that I lost my virginity to. My pubic region (as well as my discharge) still smells like him to this day and its been almost a year since we first had sex. I used douches, summer's eve, etc. and nothing has worked. He has no STD's that I am aware of and the smell is not fishy or anything that would show a sign of an STD. The smell would remind you of pants that have just been washed except it still has a hint of sweat. I want to smell like my old self again. What should I do?