Empty af

So I liked a girl in my 1st year of college and i told her we started to date for some time I cherished every moment I spent with her after some time she started to become distant and just cut off from me started to avoid me and shit. After some weeks I got to know she started to date a 3rd year senior so I went to confront her she said that we were nothing more than a one time fling but the problem is it wasnt for me I spiralled real hard after that. Kudos to my best friend he pulled me out of it now im okay with my situation but still theres an empty feeling when im alone I just miss her so much, her voice, her touch….. Im just being paranoid ig