I can’t fall in love. Is this normal for men?

The title is literal. I’m 20M and have never had as much as a crush. Just doesn’t happen for me. I very occasionally will find a girl/ guy attractive but would never actually sleep with them if given the chance. I have no major trauma or phycological issues, I am in perfectly good physical health. I figured for years I was just a late bloomer, and I would like to fall in love get married someday, etc, but I simply have no real desire for it. I’ve had my shot with both men and women who would’ve been perfect for me, but I just wasn’t into them. I hate flirting and being hit on, but I’m not introverted by any means, and I do require companionship and attention, but I happily find that through the close friendships in my life. It doesn’t bother me much but now that I’m 20 I’m wondering if that’ll ever change. I know a lot of women at least like to pretend they feel this way too, but do any of you relate?