@user1471427667
For the first time ever, I just read an entire 32 page thread. I actually cried at one point. I really empathise with you and in particular that there were no red flags, that he really could have a hidden side that he kept from you for two years.
The ‘no need to reply’ part is despicable.
A friend of mine had a similar experience. She entered some communication with him and found out 2 years later that he had cheated & left her for someone else. He never admitted to that and she was truly shocked. My best Male friend said the same but not one of her female friends suspected the guy of cheating as he came up with all kinds of crap. IMHO he missed her emotional support once the buzz of being with someone new wore off. He seemed too good of a guy to cheat. I guess you never know.
If I were you (& I know I’m not but I did have a horrible experience similar to yours), I wouldn’t block his number. I know that sounds risky but blocking is a form of response and I do think not blocking him (as long as you know he’s not crazy, obviously) puts you in an even stronger position.
You put it very well with these words:
I felt like he took away my power, my right to reply, to talk through any problems, even the right to say a proper goodbye to him. Choosing everyday not to contact him has actually given me that sense of power and choice back if that makes sense
I know it’s early days break-up wise but I wish you all the good karma, luck, love, and luck in love in the world. 

