You implied he was premature, a perpetual victim, and asked loaded questions implying he can't get laid. By trying to belittle and demean him, you ended up strengthening his point.

I can't fathom what you tried to accomplish by looking up his age. No matter what number you find, you'd dismiss him with either "you're only N years old, too young to realize that..." or "by N I was old enough to understand that..."