having a hard time today

The CD is back. We broke up 7 mo ago (were together 6 years). He was engaged to the OW after 5 mo. I have him blocked everywhere but unfortunately linkedin doesn't provide that option. Also, he texted my brother. I KNOW NC is the only way and I had been doing really well. I'm guessing he's beginning to DD the OW and that's why he's hoovering. I've "unconnected" from all the mutual contacts on linkedin (I forgot they were there) so he won't be able to look again. Also reiterated to my brother that I don't want to know about this. I could use some reassurance that he will never change and I shouldn't be flattered he is doing this. Ugh :(.