Well, if what you just posted is typical of him, then it seems that he isn't going to be giving you companionship and friendship right now, for whatever reason. As far as I can see, you have a few options:

1. Give him more time and see if he changes to how he used to be with you.
2. Accept that this is how things are going to be.
3. Tell him that you are sorry to say that things haven't worked out and ask him to move out.

None will be easy.

I'm sorry that you are going through this.