Ex-boyfriend sex

Okay so I recently got broken up by my boyfriend but I want sex. And I want to have sex with him again. I don't think it will mean anything. I know he broke up with me for a reason. I know that reason. But I want to have sex with him before we officially go our separate ways just for old times sake. Kind of a parting. A loving sex parting. What are your guy's thoughts? Advice?