why are SOME guys so weird??

Why are SOME guys (I have to say "some" in capital letters because guys will be like, "Well, I'm not 🤓👆." Well, then I'm not TALKING ABOUT YOU...omg. So weird, like I was talking to this guy for 2 minutes, and he said, “Are you freaky?” Like, bro. It's like I can't go 10 minutes without a guy showing me his "yk" or asking if I'm a freak or if I send. It's so annoying. They're also, like, so mean. Like, no, I'm not sensitive; you just called me a wh*re because I wouldn't send you what you wanted. And it's so normalized; every guy I have dated or talked to has asked for pics or showed me stuff. Like, I am 13; I do not want to have s*x. That's normally why I talk to older guys, because there have been, like, 2 older guys that have asked for stuff; the rest are VERY mature, probably because they have realized that s*xual stuff is not everything. I really wish that I was born in a generation in which social media and all that stuff was not around. Also, cheating—oh my goodness, I have been cheated on like 6 times for no reason. I don't pour my heart out and put all my effort into a relationship that you don't care about AT ALL. And it's like I see all these girls in great relationships, and I know that not all are actually great and they're just like that for the public. I do really envy people in good relationships. I honestly might just stop dating because guys are stupid anyways. Except for if you're cool...