Getting Over Ghosting

I (25M) have been going out with a girl (27F) for about a month now. Things were going great. We were talking and texting throughout the day, I had been to her place and stayed the night a few times, and I felt we truly got along. Then over this past weekend, she's literally just ghosted me. Stopped answering texts, calls, doesn't even acknowledge I'm a live. I would have never thought she could be capable of something like this. Its hard for me to believe the same girl that said "I'm glad you're here" when she was sick and I stayed with her, could do this.

I'm someone that I need a definite end to things, I need the closure to fully be able to process things, and her not allowing me that closure is extremely painful. I'm not sure how to really deal with these emotions. If you all have been in something similar, how do you go about beginning to heal? I know I should not be this devastated over a girl I basically just met, so I'm not sure why I am. I truly think it's because I could see myself with her for so much more, and after other previous toxic relationships, I had finally hoped this one could be healthy and what I need as a person. Thank you all for your help.