Right after having sex...

Why is it that when men come over and if you both have sex that after the deed is done and you both clean yourselves up there is a short awkward "what do we do now?" period where there is much silence and small talk. Then after enough of that they get ready to go.
This is excluding the times men spend the night ove so, this question isn't for those times. For anyone who has wondered about this too, let's throw some possible reasons out there. Even better, I'd like to hear from the men about why they or their boys do this.
And, yes, I am asking for myself but also for other women who I know have experienced this behavior. We just want to know why guys don't chill around afterwards to watch tv, eat a snack, play a game, talk, etc.
Thanks! smile