Sister and dating apps

My sister and I are both currently on dating apps. We don’t live in a super huge town and often have the same men swiping right on us. Obviously these men have no idea we are sisters, but is it realistic of me to get the ick and write a dude off if I find out he “liked” my sister?

I have such a hard time getting over knowing for a fact that a guy I’m dating is attracted to my sister, but she’s also a gorgeous woman and I’m not surprised by it.

Help?! I went out with someone that told me on the date he swiped on my sister (he recognized her from my photos once we connected on social media). I tried to keep my cool but it was a really big turn off and I don’t know if I can’t get past it. Am I overreacting?