Aftercare is soooo important!
It doesn't matter if you have a Dom or not. Imagine having a rough session with someone or sex that was degrading/humiliating, you will need aftercare even if you're not in a relationship with that person.
In my case, I usually need it the next day, but if I'm with someone and right after sex they start acting cold, distant or they disregard my emotions completly and act like it was a transaction, then it will affect me even before the next day. It's important to be clear about what you both like and expect, even from a one night stand cause in the end you're both supposed to enjoy the moment and none of you should be left sad, unsatisfied or straight up feeling like a prostitute that got paid and for that reason the other person couldn't care less about treating you like a human.
Soooo, aftercare people! Try it.