Guys, Does he like me or feel sorry for me?

There is this guy at work, and I like him. But I get really nervous around him, and I think he can tell and thinks I'm weird. He's always staring at me as if he's observing me, but doesn't really smile at me, even if I smile first.
A few days ago we were chatting and I was having a bad day (I have anxiety, some days are worse than others) and I was so awkward. I barely could contribute to the conversation. He asked me what I did over the weekend and I told him that I went out to dinner at this fancy place, and he asked me if I like that kind of food.. I said "yes", but nothing else, and he was like studying me probably because he could tell I was nervous.

Now he keeps staring at me even more than before and he always looks at me before he leaves for the day.

Is he wondering what the fuck is wrong with me?
Guys, Does he like me or feel sorry for me?
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