Is it normal that my "boss" acts kinda controlling with me?

I started classes like 2 semesters ago, and the previous semester I got a job on campus as a college assistant. They send us to work with faculty and help the students with software, so they sent me to work with this guy who happened to be my professor at the time (the previous semester). I must say he tries (and tried when I was his student) to do his best to treat me good, yet there are some things about him that irritate me. First off I must say that people misinterpret me all the time, so I wouldn't be surprised if what started all of this was him getting the (wrong) idea that I was attracted to him. For example, in class he went from lying his eyes on this blonde chick in the front the very first days to lying them on me almost all the time. I didn't find it weird at all though, as I was someone who was assisting him outside class and professors need to look somewhere as they talk. But there was something that struck me as odd. The three times I was very engaged talking to my male classmate (overall I am not a conversationalist,) he stopped talking and after looking at our direction for a few seconds, he asked me to do him a favor. But I didn't care that much as I sensed he might have though I was attracted to him (remember, people always misinterpret me) and I feel like for someone in his 50s, having a cute chick in her twenties interested in them should be a nice ego booster, so why would he like "his little admirer" to pay attention to someone else. So, not a big deal. Anyway, there were some other things I didn't really pay attention to until now. When in his office, he would ask what I was doing in the weekend, who I would be with, how and with who I was going to celebrate holidays, what was my schedule like and things like that. As his request, I'm working with him again this semester, but I have no idea why he requested to work with me again as he doesn't look happy with anything I do even though his words might try to say otherwise. I was thinking about the "ego booster" theory though. And I have noticed he gets mad when he sees I'm text messaging and the other day he wanted to know who I was texting to (I don't do this while working, so don't get me wrong.) He even asked how many texts a month I send. I was like...WTF! AND, recently he asked how many classes I was taking, how many hours a week I worked, until what time I stayed at the school, who I would be working with after I left his office, if I had a lot of homework, etc. I have also noticed that he calls his wife before he leaves. I think he might be a controlling, self-absorbed person, but why would he act like that with someone who only works for him!