I see your point.

Then, you need other friends. It is not normal or expected to be treated like that.

I think you should also try non-sexual friendships, even in the presence of some attraction.

Not that my record is any indication of a general trend or pattern, but two of my very very good male friends with whom I did not act on some mutual attraction (and, when you are so young and spend time together, attraction is bound to happen) remain my very good friends now 2+ decades later - via email/phone since this is long distance, one in Germany and the other in Florida, but still. And, the sexual boyfriends/first husband - two not in contact with me and one dead so no info available.

So in my tiny dataset, not acting on attractions translated into decades of friendship and acting on attractions did not.

FWIW

You really sound like a nice caring warm girl, so there is no reason for you to be treated the way you are. You need to form more connections and hopefully they will be better for you.