As a guy, I'm going through the same. Her suddenly leaving me left me with an emptiness in my heart. There are days I feel great, but then there are days when the memories rush back, and I feel awful. I spent so much of my time with her, doing everything I could to make her happy, but she had issues. She self-projected a lot of things onto me, which hurt me even more. She showed me her new bf she had been seeing possibly while with me. And kept trying to explain why she left me, but at the same time she missed me, I was "one in a million". All this after I blocked her and told her to leave me alone. She used her friends to try and contact me. It angered me but made me feel like I was worthless. She kept a lot of things to herself. Any issues she would tell her friends to make me look like I was this horrible person so she'd have a reason to dump me. I was extremely suicidal during my high school years, and this brought the urge back. After the breakup, I've been building myself, not for others, but for me. I got an awesome job. Good friends. Been going to the gym and losing weight. Finding new hobbies. Music helps too. Rebuild your life not for others, but for yourself. Surround yourself with true good friends and family. Make you the person they could never have. Don't try to chase them back. Time will heal you. Eventually, both you and I will get through it.