Why do I still like him? Does he still like me?

(One of my famous two-part questions) PART 1: I had the best boyfriend ever,but he dumped me on the last day of my school year for a girl that he was introduced to that day.I was actually in shock for a few seconds.He was one of those people that you would never expect to do something like that.My friends kept saying ‘He’s an a$$hole he doesn’t deserve you’ and similar things.But the more time that goes by,the more I realize that I still like him A LOT!!! Even after all the pain he put me and my friends through,I still like him…WHY!!! PART 2: It’s been about 2 weeks since he dumped me and now I’m starting to think that he still likes me.After about a week he called me at like, 11:30.I answered and cussed him out a little because he asked if I still want to be friends with him.Then we somehow moved on to our opinion on dairy products.Weird… after a while,we somehow got onto the subject of why I was still on the phone with him.He said I still wanted to be friends because I was still talking to him.But I had to point out that HE was the one that called ME.Had him cornered…He told me that he had a friend over for the night and his friend had made him call me.I don’t even know the person he had over!!!So of course I didn’t believe him.At some point,his grandma came in and had to hang up really fast.
The next night, he called again around the same time.This time,he was over at a friends house for the night.I actually knew the person that he was staying with.We spent the first 15 minutes of the call (at least) going back and forth saying ‘you want it’ It was kinda funny but then he stopped and said ‘you want to fck me’ I was like ‘…NO I DON’T EEEWWW!!!’ he kept saying yea whatever.After,we just stayed up till like 2 in the morning talking. Last night,I slept over with a couple friends of mine.We 67 his number and freaked out a little and hung up.Then he called back and said I know it was you.I played dumb for a while.I made the mistake of giving the phone to one of my friends.She cussed at him and handed the phone to my other friend.She cussed a little too and hung up.About 50 seconds later,he called back.I picked up and once again made the mistake of giving the phone to my friends.This continued for about 4 more cycles.Finally,we went back into the living room to continue the movie we were watching.He called back once more,but I had to fend my friends off with a comb while I told him that I had to go or my friends would kill me and hung up.120 seconds later,he called.I told him that I said twice that I had to go or death would come upon me.I told him I would talk to him later and hung up.So,does he still like me? Should I call him back…