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MiinU
Since: Jun, 2011
6th Jul, 2019 03:02:07 PM
It sounds like a combination of Suspiciously Specific Denial (regarding which age group he's really into) and Digging Yourself Deeper (due to his rambling further exposing his real interests).
The sole teacher in the Schoolgirl Series Wasteful Days of High School Girls once stated in front of his high-school students that he's into college girls. But as he rambles on, it's obvious to the girls that he is actually into Joshikousei, but is forced into a closet due to the possibility of a Reality Ensues fallout. The entire class is suitably Blue with Shock for that.