I think you should listen to your heart now. If your not ready to jump back into things then dont.... you dont need to make a decision at the moment, you can just go with the flow and see what happens and how being with him makes you feel. I think its really good to make him work now, to make him invest in the relationship. Test him a bit!
While my sitch isnt exactly the same, its a bit similar. We just had our first sleep over too. I'm playing it very very cool. I used this line "I just want to have fun, I dont want any pressure" - its not just a line, its actually the truth, and its working well for me! I think of it as giving him space to step towards me.
Good luck, I look forward to some more updates about how you are feeling.
