relationships,except idk anything

so something i think about semi often is relationships,cuz i've never had one and we think about things we've never done.the vague ideas i have of what a relationship is like is from internet posts.

i'm not even sure what kind of person i like,personality?gender?i dunno.

how do people even get into relationships??? you just go up to someone and decide you like them?how do you know if you like someone romantically or just a lot as a friend?also like is a relationship any different to just being friends,like dates are just hangouts are they not?

also something that bothers me in movies,is when the characters just kiss,like i know they both like eachother cuz they have to cuz its a movie but like you can't just kiss people without asking unless you're already dating,i think.

i could also technically say i know relationships from movies aswell but i know they're not realistic most of the time so i didn't think it should be listed.