Greetings and welcome.
Talk to him and tell him how you are feeling. And then slow the train down! It sounds like you went a bit faster then you were ready for. If boundaries were set and not stuck with, then there are things that really do need to be discussed. Openness and trust are very important and what happened to you decreases both of those immensly.
I'm sure others will have better or at least more in depth advice/words of wisdom, but I wish you luck in finding what you are looking for.
Life is about the journey and not the destination,
so what better way to know life
than to wander all the roads and paths set before you.