I've never had a boyfriend! Is something wrong with me?

I know nothing seriously is wrong with me, but is that weird? I'm 19, about to be a sopre in college, the closest thing to a boyfriend that I've had is talking to a guy for like 2 weeks in high school but then when I got to college I went to a lot of guys fraternity date nights last year as a freshman and got hit on quite a lot, but I've never ha a bf. I'm shy sometimes and suck at flirting Ive noticed some girls throw themselves on guys practically do they like that? Im kinda picky so when Im around a guy I like I'm either too afraid to talk to them or the only thing I do to flirt is laugh or smile which is not flirting...do guys my age think it's weird that I've never had a bf? Is there something wrong with me ya think??