What do I do.........?

At my beauty school these girls/my clmates unumingly bring their hot boyfriends in and I look at them and I am automatically like "omg they're hot!" And I'm just standing there....and it's natural for me to like be interested and without trying I could make them check me out...and I KNOW their girlfriend will look and I don't want them to see. But I don't want to make myself look unattractive either or start moving in an unattractive manner (the only thing I can do is ignore them and walk around looking busy) EW I feel like a nerd! I don't want to be no weird, ugly, unattractive, gross person! And it's not natural for me and it's like if I'm not checking them out its like I'm a ! But I don't want their girlfriends (who idk WHY brought their boyfriends in) also my clmates getting mad at me and acting all like I'm scandalous or betrayal or boyfriend stealing or something. What do I do? If I just stood there & look hot, the boyfriend would literally be staring at me and the girlfriend or another clmate would notice and be gossiping amongst themselves about how I'm a boyfriend stealer. Like if a guy flirts, I know I won't go any further than that but w/e he does is on him. I am not the one who can't be trusted. But it's unnatural for me to be unattractive. What do I do?