Friends come and go all of the time. I have experienced it many times myself. I am glad that you have the right attitude about it, but I wouldn't completely give up on it. You will find friends who treat you the way you deserve. There are people out there that you will be able to trust.

Writing on Medium is a good place to start. You will eventually make so many connections on here, and you'll have plenty of online and genuine friendships. (: