I am so sorry that you feel hurt by what your ex has done, it seems like he may not have wanted you to be hurt and that is why he blocked you? Either way, I can understand how hurt you are feeling over this. I'm wondering if you had ever asked him to post you or make an official post? If so and he didn't then I can understand how horrible you must be feeling. I would suggest that maybe his new girlfriend asked him or pressured him to do so? I hope you're okay.