Most Helpful Guy
If you're talking about younger boys or teens then it may be because they grow up with a culture that defines masculinity in a stricter way. Most men (not all) have a harder time expressing feelings. When you ask "how does it make you feel" it is possible for most men not to know at first. I see myself as very emotional, but I do realize it is hard to express my feelings. Other men are better at it than others. Nowadays people are progressing and this definition of masculinity isn't as strong, but it is still there. Because of the culture younger boys are not as interested in love or romance as much as girls. The girls culture is to aspire to love. And only care about love and marriage; this is still shown by the women being the more dominant audience to romance themes. But of course everyone is different and times are changing. This also doesn't mean if someone dislikes romance then they'll never like it or they won't ever find something they like.3THIS IS NOT RELEVANT ANYMORE
Most Helpful Girl
For the same reason girls don't like horror, gore, flailing, amputations, etc at 13-15.
Boys are boys. Girls are girls.
If you really wanna get theoretical plenty will tell you its primal. The man hunts, the woman cooks.
Frankly I thing it's just age. Few men enjoy romance films but with age comes great patience for sex. Whether that's sitting through titanic and getting to spoon at the car scene or whether it's a horror film and being the protector and hugging their girl for safety.
You are young. So are the boys. Just accept people are different.4THIS IS NOT RELEVANT ANYMORE