Just Hooking Up With The Ex Again?

So I recently got separated from my college sweetheart after like six years together. We were pretty much each other's first everything and now that we're split, it's kinda wild how many things still feel familiar with him... Anyways, last weekend he was in town visiting family and we ended up hooking up at his place. I mean, we both know there’s no future but geez, the chemistry is still there. We laughed about how silly it was after since we're technically single now but it definitely felt like an old habit slipping back into place... Kinda fun though? Who knew divorce could bring a new kind of playful spark?