Partner and I split up 10 days ago. I was quite upset initially (his decision) but tried to find the positives and by the middle of last week was feeling not great but ok about it. Was able to rationalise and tell myself things happen for a reason etc, remind myself of the less positive aspects of our relationship etc, arranged some things to do at the weekend...
And now I feel like shit. Everyone I work with is beyond irritating today (the usual trivial office moans are grinding me down, plus they're all so entitled. All married/ living together so we have the old 'what did you do at the weekend' and it's all couple couple stuff or sone bragging about their DC. Ugh.
Outside of work the majority of my friends are in relationships. In the last week I know 5 couples that have got married or announced engagement/ pregnancy. Obviously very happy for all of them but it magnified my own crap life in comparison.
Am also quite hurt by the fact my closest group of friends (who ive known since school, so a very long time) haven't really contacted me even though they know about the split. I suggested a meet up and nothing 
It's hurtful because my Ex partner was my best friend and now I feel like I have no one. And rather like no one really cares. I would like to just hide under my duvet indefinitely but having taken 2 days off last week to get over the breakup I can't really take any more time.
The last breakup I had was at my instigation, I felt so happy and relieved as it was a long time coming. This wasn't. So what's the best way to deal with It, do I just have to give it more time and expect less of my friends?