Long time lurker here. I'm going to try to keep this brief, as if I included all the background details it would literally be a novel and I don't want to bore you with probably useless details.
Background: I am taking a technical theatre program in college. This program is quite small, as in less than 30 in my year, something around 60 - 70 altogether. We are a very tight knit group, took all of the same classes in the first year, and while in the second year students branch into their specialties (Properties, sets, costumes, etc.), we still take many classes altogether.
Last year I was friends with a guy L in my program. I was interested in nothing more than a friendship, especially as I had a boyfriend at the time. Throughout the year it became clear that he was interested in more, an idea I did not encourage. Toward the end of the school year, L had a blowup at me, the result of which was myself being no longer interested in even a friendship with him. I made this perfectly clear to him, and politely but coldly deflected his attempts to rekindle the friendship. End Background.
All was well up until about a week ago when I received multiple drunk texts from L, to the tune of "Hey beautiful," "How you doing gorgeous?" etc. This came as a shock to me, as L had not done anything like this even before I had put an end to the friendship. I should have just ignored the messages, but felt I needed to tell him that this type of behaviour was not welcome, intoxicated or not, which I did and then went to bed. In the morning I had a message on my phone from the night before straight up asking if I was single (FTR I currently am, and am quite content). This went unanswered. Later that day I received the "sort of but not really" apology message basically attempting to excuse his behaviour because he was drunk and that he wouldn't talk to me anymore. This, again, was not answered.
Now, onto the question. Because of the close nature of my program, I am going to have to interact with L throughout the upcoming school year. How do I keep all conversations professional in nature? I do not wish to speak with him about anything other than matters of the program. How can I politely deflect personal questions or potential advances?
Thank you in advance E-Hellions, any advice you have is greatly appreciated.