My guy friend and I hooked up a few days ago. We admitted mutual attraction and wanting to have sex. We had an amazing time and talked afterwards. He texted next morning and said that sex was amazing and that he couldn't wait to meet up again. We didn't make any specific plans and I thought we would just play it by ear.
Yesterday, however, I texted him to say Hi and sense that our conversation was friendly but neutral "I'm doing ok. Hope you have a good day", where the previous day he couldn't stop telling me how amazing sex was and that he couldn't wait to do it again.
I'm trying to figure out what happened here. Is he regretting getting together? Does he need time to figure things out? Why is he acting so different all of a sudden?
Now I'm not sure what to do. Should I leave him alone and wait for him to contact me or text him again and ask what's going on?