<human>: Can you succinctly summarize the text in 1-3 sentences?

Me and my girlfriend dated for about 2 years, and broke up about a month ago.  It was an amicable break up.  Our views differed on some key things (largely marriage and kids).  

Some intervening events happened since then that have made me think less of her and less of our relationship, but it is unimportant.  Long story short, I am going to block her on all social media and on my cell phone.   

Should I let her know ], or just pull the trigger and go dark?  I do not want to hurt her, but I am not sure what is proper here.  I have never totally blocked someone out of my life before.
<bot>: I am going to block my ex along all forms of communication soon.  We are on relatively good terms.  Do I tell her before I do?