I've read some people here that say to schedule the "pity parties." In other words, schedule a pity party at 10:00 for 15 min. then get back to business or life; have another one scheduled for 2:00. Then while your busy living life and the thought of him crossed your mind; you always know in the back of your head that your pity party is scheduled for later. Then you can save those feelings for that time and feel them as needed. After that, back to life. I wish I had had that advice 8 months ago.
I think as you force yourself to go out, and accept your invites; you will get past the fear of being without the H. You may even learn to have fun without him. This will give you the confidence to DB and present a strong Mof3 to your H.
But your feelings are normal. We've all been there. We just have different time tables as to when we get there. But I think that the commonality for those of us who are there is that we got stronger in our individuality. Some will reconcile and some will move on.