Does NC really work?

well almost 4 weeks ago I was sort of “dumped” by this guy. I say sort of because we were never really dating but we did everything together as if we were in a relationship. he ended it over a dumb excuse and said he doesn’t think we’ll work out. of course I was sad and 4 weeks later I’m still a wreck but not as much as I was before. I miss him more than anything still. he randomly unfollowed me on Instagram yesterday and it made me upset and happy at the same time. I unfollowed him first two weeks ago but we haven’t talked for 4 weeks so I thought it was random for him to just unfollow me yesterday. it makes me think that maybe he misses me and doesn’t want me popping up on his Instagram idk! but I get sad seeing how many people talk about how successful NC has worked for them and it’s been 4 weeks and I’m miserable. does this really work or should I just give up?
Does NC really work?
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