Questions: Girl's Behavior

Generally women /girls seem to have fuller heavier and thicker built body than men/boys.
Maybe boys/men are comparatively taller but they're skinnier/bonier looking than fuller thicker looking girls/women.

So don't you think women and girls are physical stronger and heavier than men and boys?

Why?
Comment down below.

So this isn't the first time I've messed it up with a girl I'm interested, when I was 16 I've been interested in a girl and I scared her away by being too forward, she avoided me like the plague whenever I was nearby. Just today another girl who was one year younger than me at 18f me being 19m. Basically I was on my walk and was talking to her and her group of friends at the park and got to know her and the group a bit more since I see them during the weekend and Friday on my walks, and she was asking if I had a driver's license since she did, and she said she could take me out on a ride once in a while if I wanted, her body language for some reason at the same time was disinterested seeming. She also said do you know you're handsome, and I just said I'm flattered.

We end the conversation as usual while she casually said I love you beforehand, though she asked if I could get the gardening clubs number so she and her friends could join the club and "get to know me better". I move on a keep walking however I come to the 'amazing' conclusion that I need to ask for their numbers, so I can contact them, so as I am coming round to go home I see her and walk up and say "hi I have a question, one of friends stop and let me say it as I ask if I can get their phone numbers" her friend said she doesn't have her phone with her which is fair enough but the girl I was interested in she sped walk away before I could reach her to ask her, her friend said she'll ask her, and she did, but I must have waiter a solid two minutes but yet the girl I was interested in literally kept a huge distance in between. As I walked away to go home, just giving up I turned my head and saw her and her friend just watching me leave from the gap distance. I think I am just a repellant at times. And I even would just like to be friends with her if she is not interested in me in that way, but they probably think I am a weirdo or low-key now.