<human>: Hey /r/relationships..

Not sure if this is the right place to post something like this, but I could use a little help. I've been in a long distance relationship for about a half-decade. We weathered a lot of challenges together, and I still managed to propose in Spring 2013. Things were more or less stable up until the Summer.

That said, this year things really started to fall apart for us, partially due to the distance, and partially due to the general lack of future direction (I'm close to finishing college, she's not sure what she wants to do, etc). She ended up asking for a lot more freedom than I was comfortable with, and all in all things weren't going great in terms of communication or stability.

Cut to this Summer, where I was able to spend a little time at home before leaving again for an internship out of the state. On our last day together, she prompted a conversation in which we spoke about how we might be better off as friends (lack of mutual passions, distance, etc etc), and she asked to end things. We ended them. I left, and we only spoke sparingly for a few days, myself starting to try and move on. Three days into being single, I discovered she'd met someone online the first day I was gone, and had since been on a date and slept with him. She mostly intimates that this is just a distraction for her, that she knows it's too soon, that it's her way of coping with the break-up, but it's tearing me apart just to think about it, and I'd really like to get past the pain. 

So, fellow redditors, how do I deal? I'm mostly considering just cutting her off conversationally for a few weeks, but I'd love to hear your opinions. 

Thanks for your time! 
Kreelix

P.S. - This really isn't meant to be a "let's bash my ex" thread, I understand why she chose that course of action, and I don't "blame" her.

Could you distill the essence of the text into 1-3 sentences?
<bot>: Long-term, long distance relationship ended last weekend, she's already sleeping with someone new, could use help with some coping methods.