Did you meet straight guys acting like they were gays

I met several guys who often act like they were gay with each other & me. Is it a new tendancy ?I mean, the handsome dreamy guy of my university sneakily grabbed my ass today and I've seen him blinking to other guys but it was overplayed. And of course he is 100% straight. It's not the first time I see this kind of attitude, I am the only one ?