Hello @Breakingupbadly72. Thanks for saying that. You wouldn't have said that if you'd seen me handle my previous break up - as the way it was handled by the other person made all the difference. Last time, I was lied to and then basically ghosted, only to find him again online as though nothing had happened. I desperately sought answers and got nothing.
We have no control over how others see us. Particularly in relation to romantic relationships, where his view of you may be in line with the way he views and treats ALL women, which in turn probably stems from a dysfunctional childhood or whatever. If you struggled to let go of him and now worry that your behaviour makes you look 'unhinged', I can tell you that my behaviour this time around is that of a normal person, but last time was that of someone who was trying to get over a toxic ending with a cowardly messed up man, and my behaviour was completely different. In other words, I have not changed but the relationship I'm recovering from is different and that has enabled me to behave in a more rational way.
Every time you catch yourself thinking about him, actively try to tell yourself "NO, I'm ruminating and it's pointless" and force yourself to have a thought which is about you and your life and your future.
In terms of blocking, I've opted for blocking on all social media (the LinkedIn was hard as I somewhat pathetically wanted him to see my new job announcement) and number deleted on WhatsApp but not blocked, with the chat exported to my computer.
The way we left our conversation the other day was peaceful and friendly but I don't think he'll get in touch with me for a long while as he recognised that he has hurt me and it's not appropriate for him to be bouncing into my inbox. I'm telling myself in a few months time I'll have a think about making contact but am resolute that a friendship won't work and there's nothing more to say. (This is the first time in my life I have been able to be rational..!)