If last time you spoke was February then clearly it's over.

Are you sure it was actually a relationship? By the way you two spoke to each other didn't sound like couples speak, who known each other for that long!

I don't know what you meant by ulterior motives. It sounded that he came to town for graduation and to close his apartment and to see you. If you were together for years, wanting sex with you is quite normal. If you were not sure, or did not want it, you didn't tell him he that.

You communication with him sounded strange though. I was confused about putting pajamas back on in the middle of the day.

If you want to know why he stopped talking to you, ask him?