Ex-boyfriend confusion

So I get a text message at 12:45am this morning from my ex. He broke things off with me about 3 weeks ago. This is the first contact we have had since breaking up. His text message was in reference to an email I had sent his roommate (a girl whom i'm friends with). In his text he asked for me to call him, so I did. Why? I don't know....

We talked for 2 hours about everything and clarified a few things. The break up came out of nowhere and it took me by complete shock. He says he misses me and what not and he thinks of me often. He never said the exact words- 'I want us to get back together.' - but he would not get off the phone with me. He kept calling me babe and sweetie. I have no beef with him nor am I enemies with him.

He had a party this past saturday and he said the he had hoped that I was going to show up. Why in the hell I would show up to my ex-boyfriends party, I have no idea?!?!

I guess I'm just confused and not really sure what to think of all of this!