Ppl find it weird that I'm not in a relationship

I'm always ask about my sexuality, ever since I'm a teen they think I'm a lesbian coz i dont a have bf (which is odd af) but I use it sometimes to reject men from approaching me

They always ask why I'm not in a relationship, i said idk how to fall in love, and I'm numb af, im too rational than emotional, I'm also self aware that I'm a btch so i don't wanna waste someone's feelings and time for me. They don't believe my answers, they thought oh becoz i haven't experienced it yet, im too young(I'm not), I cant talk indefinitely coz u never know the future, ARRGh idk and i can't fall in love, i cant feel it!

They're lowkey stressing me out, making it seem like I'm odd, immature, trying to play hard to get, im losing the "best experience of youth".