+1 to this. Expanding a bit... Something that helps become a more active listener is to use your imagination to create a "scene" from the story that others are sharing with you. This will keep your brain more focused on the story while also create opportunities for legitimate follow up (by trying to fill details on the scene you are creating).

A second trick is to stop a natural impulse to reply with YOUR Own story and, instead, ask a few questions to get more details.

As others have recommended, find new relationships that could become your new friends.

And, think about why they behaved that way and it was OK for a while. Until it was not.

There. Probably you are landing at self respect. We are the ones who need to elevate self love and self respect. You are a beautiful, talented person who has the capacity to be open about this with the world.

Now, amplify that energy and raise the bar on what you expect from life and how your relationships should matter to you more.