Do you think it's appropriate to temporarily "unfriend" your ex?

This is actually two questions I guess. We broke up amicably, agreed there were tons of strong feelings but it was just horrible timing. We had been dating for almost 7 months and both agreed we went from 0-90 so quickly without communicating well, etc. Plus I met him literally right after I relocated to a new city after losing my mother horribly and quickly to cancer, didn't have a job, know many people, etc., and in hindsight had no business getting involved with anyone utnil I found my feet. I unfriended him on facebook, I was just going to do it temporarily so I didn't see all of his status updates and check-ins/pics with other girls, even if there was nothing going on it would just make me nuts, and he called me literally a minute later (I was going to call him or text him and let him know I had done it and why) and was all, "have a nice life" and when I explained why I did it he said he was upset that I didn't come talk to him about this. So I sent him another friend request but asked that he wait a couple of weeks before accepting it, then I sent him a long e-mail explaining that this was hard for me and I simply needed time to heal, and to text or e-mail me back that he understood. He responded that he was going to suggest the same thing and he agreed. First of all, do you think that was okay for me to do, and second of all, how long do you think you should go "no contact" with an ex you genuinely care for and want in your life? I am not ruling out the possibility of even getting back together someday, it's just definetely not the right time. Thanks.