Thought I would be, but checking in a few weeks later (well, posting about it), I'm not all that sad about the break-up. I'm actually feeling free and happy. Within 24 hours, I had realized the heft I had been carrying around was gone and just calm and freedom replaced it which are not burdens at all!
I think it is interesting that I am not sad.
At therapy, I am relearning my wants and needs for a relationship. I learned very well to suppress those and to suppress feelings/frustrations/anger when people treat me poorly. Never again. I may not always put myself first, but I won't put myself second at my own detriment ever again.
I am so proud of myself for being strong and happy. I am happy again.