Does it mean a guy is angry if he responds like this?

I was talking with my coworker today and there’s this guy who I also work with who has shown a little interest in me in the past by complimenting me/teasing me but things have been a little weird lately. He is older than me. I’m early 20s and he’s late 20s or early 30s.
I was telling my female coworker today how I like older men and how they’re better looking than guys my age.
She agreed and was like “yeah I think there’s something in the chicken that they eat or something”
The guy I’m talking about who I thought may have been interested in me then walked by and was like “I don’t eat chicken” with a serious face but was kind of blushing.
What did he mean by this? I don’t get it.
Does it mean a guy is angry if he responds like this?
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