Can somebody please help me?

My girflriend told me that she needed a little break from me but I she didn't know how long. She said a while. (How long is a while? A week? Two weeks? A month?)

This happened last night... since then.... I feel so hideous, and terrible, and sick. I feel hideous and terrible because I'm the one that caused this. I understand that it is my fault. I regret things so much I can't even put it in to words. But since it happened I DON'T KNOW WHAT TO DO. I can't get it off my mind. I feel like I need to be constantly doing stuff but I try that and it still doesn't stop the thoughts. I went on a run this morning and spent half of the run sobbing. I've done basically nothing but cry since last night. I cried just now. I'll probably cry again later.

I also feel sick and my heart feels like it just died right in my chest. She said it wasn't going to be forever, that she just needed a break from me. But god I miss her more than I can think. I realize that I need to treat her better than I have. I realize that I need to work on strengthening our relationship and not rip it apart.... or break it up...

I just... help...? I don't know how to get it off my mind. I don't know how to stop myself from breaking down and crying. I don't know how to get through this. This experience... it's like... it's like I'm not strong enough to lose her. If I ever did lose her forever I think I might die. I'm not suicidal....but I feel very very very dead right now. Dead and yet so completely restless.

I need to get better somehow. I need to be strong and make it through but I don't even know how. I've tried reading, watching videos. I've done a bunch of homework. I went on a run. Listening to much. NOTHING'S WORKING.

I turned off my cell phone too.... It's too painful to keep on because I know I'll be waiting and waiting to hear for her and it won't ever come it seems.

I try to think that maybe it's just a week. I try and comfort myself with that. I can wait a week. But what happens when it's not?

God I'm so screwed up, god I screwed this up so much.

Can somebody please help me?