Should I break up with my girlfriend for finding out she was with two black men before me?

Now hear me out before you think im racist or prejudice. I don't have anything against black men & i don't have any problem with who people decide to date. But black men are considered to be better in bed and are bigger down there. My girlfriend is white & i know a lot of white girls that are into black men but I have fear that because she's been with black guys, ill disappoint her & feel like i won't measure up to her last two boyfriends & eventually she might cheat or break up with me. So I've been thinking about just breaking up with her & let her find someone else. Should i break up with her though? It's been bothering me a lot
Should I break up with my girlfriend for finding out she was with two black men before me?
Post Opinion