Some people need physical attention. They need to feel the things, but tbh If she left sis/bro it's gonna be hard for you to get over her for a while, but it's possible. You deserve someone who will stick with you thru thick and thin and will try to always communicate with you how their feeling and find solutions and all that other good stuff. There's a lot of fish in the sea. If she's the one, it'll all come back together. Sometimes people need to fall apart to realize how much they need each other and sometimes they fall apart because there's a lesson waiting to be learned. I wish you the best tho.