She wanted "space", but now she's dating another guy?

[Josh]

What should I do? We're an on/off relationship couple. We've been together for over a year, before she wanted a break. After no contact for 3 weeks, she came back to me. We were together again until two weeks ago, when she sent me these messages:

"No I need to say this. Mostly, I'm scared. Scared of the future. I know I've always told you I was going to run away with you. But the past couple days I've had to face reality. I have so many dreams I want to accomplish. I want to go to college and get a phd and be a doctor and I can't do that if I'm constantly worrying. I've always been the type of person to put everyone else first but I need to take care of myself first
This distance, and the empty ness I'm feeling recently is seriously hurting me...my grades have dropped, and Elon isn't going to consider me for the psych program anymore because of it. I haven't been sleeping or eating. I know I'm rambling but...what I'm trying to say is right now, I need to be taking care of myself so I can do what I want in life. Does that make sense?"

Now, after two weeks of no contact, I saw through Facebook that she's dating the SAME guy she was with when we broke up back in August for the first time. I love this girl more than anything. I feel like for now, though, the best thing for me to do is just move on, and I guess if it's meant to be she'll come back like she did last time. I've unfollowed her on all social media, and the guy she's dating is a sort of loser.

[Jon G]

That's what space means. It means space away from you. Stop this stupid on and off crap and just move on.

[Ian]

Space equals new dick. Girls are no logical and make shit up to make themselves feel better about screwing someone over. Think of girls like birds. Birds love shiny things. They find something shiny and they love it can't get enough but then outa the corner of there eye they see something else shiny and leave for that. Sorry bro it sucks but its true its all emotional for them that's it. They only care about themselves.