Knowing ur relationship isn't the same anymore

Why stay knowing my relationship with my boyfriend has changed and In a way it changed me .I use to be excited too see him to make him gifts write him letters but I never got the same treatment we used to text everyday call everyday now he just says he doesn't have the need to chat but then I see him online in some socials ..I know how that all sounds like he cheating on me or doesn't love me anymore
I don't know when the last time we actually really laughed together everytime together it feels on my side that he doesn't want me there I feel unwanted unloved but I'm too scared too move on because I know I'll never get to see him again . through everything and we've been thru and it's alot ,I love him always will but you have to let someone go . Right?