Should i let my freind meet all my guy freinds???

i have a freind who is way prettier than me, and evrytime i introduce her to 1 of my guy frinds that i happen to hav a crush on they like her way moe than they like me.. it osnt fair.. ive already lost 2 of my boyfriends thanks to them liking her, and i dont want to lose another 1!!!i want her to meet important people in my life, cuz shes 1 of my best freinds, but i dont want 2 be single for the rest of my life!!!! help!!!!