But I have a feeling that there's some piece of me missing that I know nothing of. I've felt like this before he told me he did something to me... I'm just trying to find myself again somehow.
Why are you fretting over something that "might have been"? Assume nothing happened and move on. You are only creating a problem by your handling of it.
You have received a lot of good advice here. Communication with this individual needs to stop - like yesterday. From the outside looking in, this is clearly an unhealthy situation. Your willingness to allow yourself to be treated this way may be more of a point of concern than the behavior of the man inflicting it upon you. Discuss this with someone you trust and you know has your best interest at heart. Please.
He's trouble. Praying for you.
It doesn't sound like anything we say to you is going to matter. Best of luck to you..
I don't think he'd ever admit it he needs help though... He wasn't really bragging about what he did, I somehow forced him to give me hints every day, but they didn't help me at all (the ones with the metaphors), then he suggested to give them to me once a week and promised to make them a bit easier and more concrete, it did happen, but didn't help me into finding out what he might've done....
Whenever I try to talk to him about it, he switches the subject immediately, so he's not very fond of what he might've done.