I'm sorry you got your heart broke again. It is painful and will take time to feel less painful. Do not try to pursue continued friendship with her. That is only prolonging the agony. It's over. For whatever reason, things between the two of you did not work out.

Don't torture yourself wondering if she "cares" or doesn't. She probably does a bit. But her focus is now on someone else, and before too long you will just be a vague memory to her. That's not her being cruel. That's just how it goes.

Give yourself some time to heal up a little, and then go be open to a new relationship . . . maybe with someone not so young. Loneliness is one of the worst things in life and probably is the reason for a lot of suicides. But consider this: Somewhere there is some woman who, like you, is lonely. Actually, there are quite a lot of women in that predicament. Keep your eyes open for someone who has needs that you can fulfill.

If you find yourself falling for a woman who seems to not want more than friendship with you, then know that you need to move on from that. Those "friendships" mostly just bring pain.